부산대학교 도서관

Huber C; Department of Neuroradiology, Kantonsspital Aarau, University of Zurich, Tellstrasse 21, 5001 Aarau, Switzerland.; Berberat J; Department of Neuroradiology, Kantonsspital Aarau, 5001 Aarau, Switzerland.; Sassenburg R; Department of Neuroradiology, Kantonsspital Aarau, 5001 Aarau, Switzerland.; Pflugi S; Department of Neuroradiology, Kantonsspital Aarau, 5001 Aarau, Switzerland.; Anon J; Department of Neuroradiology, Kantonsspital Aarau, 5001 Aarau, Switzerland.; Diepers M; Department of Neuroradiology, Kantonsspital Aarau, 5001 Aarau, Switzerland.; Andereggen L; Department of Neurosurgery, Kantonsspital Aarau, University of Bern, 3012 Bern, Switzerland.; Kahles T; Department of Neurology, Kantonsspital Aarau, University of Basel, 4001 Basel, Switzerland.; Luft AR; Department of Neurology, University Hospital Zurich, University of Zurich, 8952 Zurich, Switzerland.; Cereneo, Center for Neurology and Rehabilitation, 6354 Vitznau, Switzerland.; Nedeltchev K; Department of Neurology, Kantonsspital Aarau, University of Bern, 3012 Bern, Switzerland.; Remonda L; Department of Neuroradiology, Kantonsspital Aarau, 5001 Aarau, Switzerland.; Gruber P; Department of Neuroradiology, Kantonsspital Aarau, University of Zurich, Tellstrasse 21, 5001 Aarau, Switzerland.

Publisher: MDPI AG Country of Publication: Switzerland NLM ID: 101606588 Publication Model: Electronic Cited Medium: Print ISSN: 2077-0383 (Print) Linking ISSN: 20770383 NLM ISO Abbreviation: J Clin Med Subsets: PubMed not MEDLINE

Kaufmann JE; Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland.; Neurology and Neurorehabilitation, University Department of Geriatric Medicine FELIX PLATTER, University of Basel, Basel, Switzerland.; Gensicke H; Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland.; Neurology and Neurorehabilitation, University Department of Geriatric Medicine FELIX PLATTER, University of Basel, Basel, Switzerland.; Schaedelin S; Department of Clinical Research, Clinical Trial Unit, University Hospital Basel and University of Basel, Basel, Switzerland.; Luft AR; Division of Vascular Neurology and Neurorehabilitation, Department of Neurology, University Hospital of Zurich and University of Zurich, Zurich, Switzerland.; Center for Neurology and Rehabilitation, Cereneo, Vitznau, Switzerland.; Goeggel-Simonetti B; Department of Neurology, University Hospital Bern, University of Bern, Bern, Switzerland.; Department of Neuropediatrics, Institute of Pediatrics of Southern Switzerland, San Giovanni Hospital, Bellinzona, Switzerland.; Fischer U; Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland.; Department of Neurology, University Hospital Bern, University of Bern, Bern, Switzerland.; Michel P; Stroke Center and Neurology Service, Department of Clinical Neurosciences, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland.; Strambo D; Stroke Center and Neurology Service, Department of Clinical Neurosciences, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland.; Kägi G; Department of Neurology, University Hospital Bern, University of Bern, Bern, Switzerland.; Department of Neurology and Stroke Center, Cantonal Hospital St Gallen, St Gallen, Switzerland.; Vehoff J; Department of Neurology and Stroke Center, Cantonal Hospital St Gallen, St Gallen, Switzerland.; Nedeltchev K; Department of Neurology and Stroke Center, Cantonal Hospital Aarau, Aarau, Switzerland.; Kahles T; Department of Neurology and Stroke Center, Cantonal Hospital Aarau, Aarau, Switzerland.; Medical Faculty, University of Basel, Basel, Switzerland.; Kellert L; Department of Neurology, Ludwig Maximilian University, Munich, Germany.; Institute for Stroke and Dementia Research, University Hospital, Ludwig Maximilian University, Munich, Germany.; Rosenbaum S; Department of Neurology, Bispebjerg Hospital and University of Copenhagen, Copenhagen, Denmark.; von Rennenberg R; Department of Neurology with Experimental Neurology, Center for Stroke Research Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany.; Riegler C; Department of Neurology with Experimental Neurology, Center for Stroke Research Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany.; Seiffge D; Department of Neurology, University Hospital Bern, University of Bern, Bern, Switzerland.; Sarikaya H; Department of Neurology, University Hospital Bern, University of Bern, Bern, Switzerland.; Zietz A; Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland.; Neurology and Neurorehabilitation, University Department of Geriatric Medicine FELIX PLATTER, University of Basel, Basel, Switzerland.; Wischmann J; Department of Neurology, Ludwig Maximilian University, Munich, Germany.; Polymeris AA; Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland.; Hänsel M; Division of Vascular Neurology and Neurorehabilitation, Department of Neurology, University Hospital of Zurich and University of Zurich, Zurich, Switzerland.; Globas C; Division of Vascular Neurology and Neurorehabilitation, Department of Neurology, University Hospital of Zurich and University of Zurich, Zurich, Switzerland.; Bonati LH; Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland.; Research Department, Reha Rheinfelden, Rheinfelden, Switzerland.; Brehm A; Department of Neuroradiology, Clinic of Radiology and Nuclear Medicine, University Hospital Basel, Basel, Switzerland.; Department of Neuroradiology, University Hospital Zurich, Zurich, Switzerland.; De Marchis GM; Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland.; Department of Neurology and Stroke Center, Cantonal Hospital St Gallen, St Gallen, Switzerland.; Peters N; Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland.; Neurology and Neurorehabilitation, University Department of Geriatric Medicine FELIX PLATTER, University of Basel, Basel, Switzerland.; Nolte CH; Department of Neurology with Experimental Neurology, Center for Stroke Research Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany.; Berlin Institute of Healths at Charité, Charité-Universitätsmedizin Berlin, Berlin, Germany.; Christensen H; Department of Neurology, Bispebjerg Hospital and University of Copenhagen, Copenhagen, Denmark.; Wegener S; Division of Vascular Neurology and Neurorehabilitation, Department of Neurology, University Hospital of Zurich and University of Zurich, Zurich, Switzerland.; Psychogios MN; Department of Neuroradiology, Clinic of Radiology and Nuclear Medicine, University Hospital Basel, Basel, Switzerland.; Department of Neuroradiology, University Hospital Zurich, Zurich, Switzerland.; Arnold M; Department of Neurology, University Hospital Bern, University of Bern, Bern, Switzerland.; Lyrer P; Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland.; Traenka C; Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland.; Neurology and Neurorehabilitation, University Department of Geriatric Medicine FELIX PLATTER, University of Basel, Basel, Switzerland.; Engelter ST; Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland.; Neurology and Neurorehabilitation, University Department of Geriatric Medicine FELIX PLATTER, University of Basel, Basel, Switzerland.

Publisher: Wiley-Liss Country of Publication: United States NLM ID: 7707449 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1531-8249 (Electronic) Linking ISSN: 03645134 NLM ISO Abbreviation: Ann Neurol Subsets: MEDLINE

Wueger P; Faculty of Biomedical Sciences, Università Della Svizzera Italiana, Lugano, Switzerland.; Noseda R; Division of Clinical Pharmacology and Toxicology, Institute of Pharmacological Sciences of Southern Switzerland, Ente Ospedaliero Cantonale, Lugano, Switzerland.; Pagnamenta A; Clinical Trial Unit, Ente Ospedaliero Cantonale, Lugano, Switzerland.; Department of Intensive Care, Ente Ospedaliero Cantonale, Lugano, Switzerland.; Division of Pneumology, University of Geneva, Geneva, Switzerland.; Bianco G; Neurocentre of Southern Switzerland, Ospedale Regionale di Lugano, Ente Ospedaliero Cantonale, Lugano, Switzerland.; Seiffge D; Department of Neurology, University Hospital Bern, Bern, Switzerland.; Michel P; Stroke Center, Neurology Service, Lausanne University Hospital, Lausanne, Switzerland.; Nedeltchev K; Department of Neurology, Kantonsspital Aarau, Aarau, Switzerland.; Bonati L; Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland.; Kägi G; Department of Neurology, Kantonsspital St. Gallen, St. Gallen, Switzerland.; Niederhauser J; Stroke Unit, Hopital Nyon, Nyon, Switzerland.; Nyffeler T; Center of Neurology and Neurorehabilitation, Luzerner Kantonsspital, Luzern, Switzerland.; Luft A; Department of Neurology, Universitätsspital Zürich, Zürich, Switzerland.; Wegener S; Department of Neurology, Universitätsspital Zürich, Zürich, Switzerland.; Schelosky L; Division of Neurology, Kantonsspital Münsterlingen, Münsterlingen, Switzerland.; Medlin F; Division of Neurology, HFR Fribourg, Stroke Unit, Fribourg, Switzerland.; Rodic B; Department of Neurology, Kantonsspital Winterthur, Winterthur, Switzerland.; Peters N; Department of Neurology and Stroke Center, Hirslanden Hospital, Zurich, Switzerland.; Renaud S; Division of Neurology, Pourtalès Hospital, Neuchatel, Switzerland.; Mono ML; Stroke Unit, Stadtspital Waid und Triemli, Zürich, Switzerland.; Carrera E; Department of Neurology, Hôpitaux Universitaires de Genève, Geneva, Switzerland.; Fischer U; Department of Neurology, University Hospital Bern, Bern, Switzerland.; Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland.; De Marchis GM; Department of Neurology, Kantonsspital St. Gallen, St. Gallen, Switzerland.; Cereda CW; Faculty of Biomedical Sciences, Università Della Svizzera Italiana, Lugano, Switzerland.; Neurocentre of Southern Switzerland, Ospedale Regionale di Lugano, Ente Ospedaliero Cantonale, Lugano, Switzerland.

Publisher: Frontiers Research Foundation Country of Publication: Switzerland NLM ID: 101546899 Publication Model: eCollection Cited Medium: Print ISSN: 1664-2295 (Print) Linking ISSN: 16642295 NLM ISO Abbreviation: Front Neurol Subsets: PubMed not MEDLINE

Poli S; Department of Neurology & Stroke, Eberhard-Karls University, University Hospital, Tubingen, Germany.; Hertie Institute for Clinical Brain Research, Eberhard-Karls University, Tubingen, Germany.; Mbroh J; Department of Neurology & Stroke, Eberhard-Karls University, University Hospital, Tubingen, Germany.; Baron JC; Department of Neurology, Hopital Sainte-Anne, Universite de Paris, Paris, France.; Singhal AB; Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.; Strbian D; Department of Neurology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.; Molina C; Department of Neurology, Vall d'Hebron University Hospital, Barcelona, Spain.; Lemmens R; Department of Neurosciences, Experimental Neurology, KU Leuven, University of Leuven, Leuven, Belgium.; Department of Neurology, University Hospitals Leuven, Leuven, Belgium.; Turc G; Department of Neurology, Hopital Sainte-Anne, Universite de Paris, Paris, France.; Department of Neurology, GHU Paris Psychiatrie et Neurosciences INSERM U1266 Universite Paris Cite FHU NeuroVasc, Paris, France.; Mikulik R; Department of Neurology, St. Anne's University Hospital Brno and Masaryk University, Brno, Czech Republic.; Michel P; Neurosciences Cliniques, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland.; Tatlisumak T; Department of Neurology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.; Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden.; Department of Neurology, Sahlgrenska University Hospital, Gothenburg, Sweden.; Audebert HJ; Department of Neurology and Center for Stroke Research Berlin, Charite Universitatsmedizin Berlin, Berlin, Germany.; Dichgans M; Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany.; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany.; German Center for Neurodegenerative Diseases (DZNE, Munich), Munich, Germany.; German Centre for Cardiovascular Research (DZHK, Munich), Munich, Germany.; Veltkamp R; Department of Neurology, Alfried Krupp Hospital, Essen, Germany.; Department of Brain Sciences, Imperial College London, London, UK.; Hüsing J; Coordinating Centre for Clinical Trials, University of Heidelberg, Heidelberg, Germany.; Landeskrebsregister Nordrhein-Westfalen, Bochum, Germany.; Graessner H; Center for Rare Diseases, Eberhard-Karls University, Tubingen, Germany.; Fiehler J; Neuroradiology, University Hospital Hamburg-Eppendorf, Hamburg, Germany.; Eppdata GmbH, Hamburg, Germany.; Montaner J; Vall d'Hebron Institut de Recerca, Neurovascular Research Lab, Barcelona, Spain.; Adeyemi AK; Department of Neurology & Stroke, Eberhard-Karls University, University Hospital, Tubingen, Germany.; Althaus K; Department of Neurology, University Hospital of Ulm, Ulm, Germany.; Arenillas JF; Hospital Clinico Universitario de Valladolid, Valladolid, Spain.; Bender B; Department of Diagnostic and Interventional Neuroradiology, Eberhard-Karls University, Tubingen, Germany.; Benedikt F; Department of Neurology, University Hospital Essen, Essen, Germany.; Broocks G; Department of Neuroradiology, University Hospital Hamburg-Eppendorf, Hamburg, Germany.; Burghaus I; Coordinating Centre for Clinical Trials, University of Heidelberg, Heidelberg, Germany.; Cardona P; Department of Neurology, Hospital University de Bellvitge, Barcelona, Spain.; Deb-Chatterji M; Department of Neurology, University Hospital Hamburg-Eppendorf, Hamburg, Germany.; Cviková M; Department of Neurology, St. Anne's University Hospital in Brno, Faculty of Medicine Masaryk University, Brno, Czech Republic.; Defreyne L; Department of Vascular and Interventional Radiology, Ghent University Hospital, Ghent, Belgium.; De Herdt V; Department of Neurology, Ghent University Hospital, Ghent, Belgium.; Detante O; Neurology, CHU Grenoble Alpes, Grenoble, France.; Inserm, U1216, Grenoble Institut Neurosciences, Université Grenoble Alpes, Grenoble, France.; Ernemann U; Department of Diagnostic and Interventional Neuroradiology, Eberhard-Karls University, Tubingen, Germany.; Flottmann F; Department of Neuroradiology, University Hospital Hamburg-Eppendorf, Hamburg, Germany.; García Guillamón L; Vall d'Hebron Institut de Recerca, Neurovascular Research Lab, Barcelona, Spain.; Glauch M; Center for Rare Diseases, Eberhard-Karls University, Tubingen, Germany.; Gomez-Exposito A; Department of Neurology & Stroke, Eberhard-Karls University, University Hospital, Tubingen, Germany.; Gory B; Department of Diagnostic and Therapeutic Neuroradiology, Centre Hospital Regional Universitaire de Nancy, Universite de Lorraine, INSERM U1254, Nancy, France.; Sylvie Grand S; Inserm, U1216, Grenoble Institut Neurosciences, Université Grenoble Alpes, Grenoble, France.; Neuroradiology / MRI Department, CHU Grenoble Alpes, Grenoble, France.; Haršány M; Department of Neurology, St. Anne's University Hospital in Brno, Faculty of Medicine Masaryk University, Brno, Czech Republic.; International Clinical Research Centre, St. Anne's University Hospital in Brno, Brno, Czech Republic.; Hauser TK; Department of Diagnostic and Interventional Neuroradiology, Eberhard-Karls University, Tubingen, Germany.; Heck O; Neuroradiology / MRI Department, CHU Grenoble Alpes, Grenoble, France.; Hemelsoet D; Department of Neurology, Ghent University Hospital, Ghent, Belgium.; Hennersdorf F; Department of Diagnostic and Interventional Neuroradiology, Eberhard-Karls University, Tubingen, Germany.; Hoppe J; Department of Neurology, University Hospital Hamburg-Eppendorf, Hamburg, Germany.; Kalmbach P; Department of Neurology & Stroke, Eberhard-Karls University, University Hospital, Tubingen, Germany.; Kellert L; Department of Neurology, Ludwig Maximilian University (LMU), Munich, Germany.; Köhrmann M; Department of Neurology, University Hospital Essen, Essen, Germany.; Kowarik M; Department of Neurology & Stroke, Eberhard-Karls University, University Hospital, Tubingen, Germany.; Hertie Institute for Clinical Brain Research, Eberhard-Karls University, Tubingen, Germany.; Lara-Rodríguez B; Department of Neurology, Hospital University de Bellvitge, Barcelona, Spain.; Legris L; Neurology, CHU Grenoble Alpes, Grenoble, France.; Inserm, U1216, Grenoble Institut Neurosciences, Université Grenoble Alpes, Grenoble, France.; Lindig T; Department of Diagnostic and Interventional Neuroradiology, Eberhard-Karls University, Tubingen, Germany.; Luntz S; Coordinating Centre for Clinical Trials, University of Heidelberg, Heidelberg, Germany.; Lusk J; Duke University School of Medicine, Durham, NC, USA.; Mac Grory B; Duke University School of Medicine, Durham, NC, USA.; Duke Clinical Research Institute, Durham, NC, USA.; Department of Neurology, Duke University School of Medicine, Durham, NC, USA.; Manger A; Department of Anesthesiology and Intensive Care Medicine, Eberhard-Karls University, Tubingen, Germany.; Martinez-Majander N; Department of Neurology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.; Mengel A; Department of Neurology & Stroke, Eberhard-Karls University, University Hospital, Tubingen, Germany.; Meyne J; Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany.; Müller S; Department of Neurology, University Hospital of Ulm, Ulm, Germany.; Mundiyanapurath S; Department of Neurology, Heidelberg University Hospital, Heidelberg, Germany.; Naggara O; Department of Neuroradiology, GHU Paris Psychiatrie et Neurosciences INSERM U1266 Universite Paris Cite FHU NeuroVasc, Paris, France.; Nedeltchev K; Department of Neurology, KSA Kantonsspital Aarau and University of Bern, Bern, Switzerland.; Nguyen TN; Department of Radiology, Boston Medical Center, Boston, MA, USA.; Department of Neurology, Boston Medical Center, Boston, MA, USA.; Nilsson MA; Coordinating Centre for Clinical Trials, University of Heidelberg, Heidelberg, Germany.; Obadia M; Department of Neurology and Stroke Center, Hopital fondation Adolphe de Rothschild, Paris, France.; Poli K; Department of Neurology & Stroke, Eberhard-Karls University, University Hospital, Tubingen, Germany.; Purrucker JC; Department of Neurology, Heidelberg University Hospital, Heidelberg, Germany.; Räty S; Department of Neurology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.; Richard S; Centre Hospital Regional Universitaire de Nancy, Nancy, France.; Richter H; Department of Infectiology, Eberhard-Karls-University, Tuebingen, Germany.; Schilte C; Department of Anaesthesia and Critical Care, CHU Grenoble Alpes, Grenoble, France.; Schlemm E; Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.; Stöhr L; European Clinical Research Infrastructure Network (ECRIN), Paris, France.; Stolte B; Department of Neurology, University Hospital Essen, Essen, Germany.; Sykora M; Department of Neurology, St. John's Hospital, Vienna, Austria.; Thomalla G; Department of Neurology, University Hospital Hamburg-Eppendorf, Hamburg, Germany.; Tomppo L; Department of Neurology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.; van Horn N; Department of Neuroradiology, University Hospital Hamburg-Eppendorf, Hamburg, Germany.; Zeller J; Department of Neurology & Stroke, Eberhard-Karls University, University Hospital, Tubingen, Germany.; Ziemann U; Department of Neurology & Stroke, Eberhard-Karls University, University Hospital, Tubingen, Germany.; Hertie Institute for Clinical Brain Research, Eberhard-Karls University, Tubingen, Germany.; Zuern CS; Department of Cardiology, Universitatsspital Basel, Basel, Switzerland.; Härtig F; Department of Anesthesiology and Intensive Care Medicine, Eberhard-Karls University, Tubingen, Germany.; Tuennerhoff J; Department of Neurology & Stroke, Eberhard-Karls University, University Hospital, Tubingen, Germany.; Hertie Institute for Clinical Brain Research, Eberhard-Karls University, Tubingen, Germany.

Publisher: SAGE Publications Country of Publication: United States NLM ID: 101274068 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1747-4949 (Electronic) Linking ISSN: 17474930 NLM ISO Abbreviation: Int J Stroke Subsets: MEDLINE

Silimon N; Department of Neurology, Stroke Research Center Bern, Inselspital University Hospital Bern and University of Bern, Bern, Switzerland.; Drop B; Department of Neurology, Stroke Research Center Bern, Inselspital University Hospital Bern and University of Bern, Bern, Switzerland.; Clénin L; Department of Neurology, Stroke Research Center Bern, Inselspital University Hospital Bern and University of Bern, Bern, Switzerland.; Nedeltchev K; Department of Neurology, Stroke Research Center Bern, Inselspital University Hospital Bern and University of Bern, Bern, Switzerland.; Department of Neurology, Cantonal Hospital of Aarau, Aarau, Switzerland.; Kahles T; Department of Neurology, Cantonal Hospital of Aarau, Aarau, Switzerland.; Tarnutzer AA; Department of Neurology, Cantonal Hospital of Baden, Baden, Switzerland.; Katan M; Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland.; Bonati L; Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland.; Reha Rheinfelden, Rheinfelden, Switzerland.; Salmen S; Stroke Unit, Spitalzentrum Biel, Biel, Switzerland.; Albert S; Stroke Unit, Cantonal Hospital Graubünden, Chur, Switzerland.; Salerno A; Stroke Center, Neurology Service, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.; Carrera E; Department of Neurology, Hôpitaux Universitaires de Genève, Geneva, Switzerland.; Berger C; Stroke Unit, Cantonal Hospital Grabs, Switzerland.; Peters N; Stroke Center, Klinik Hirslanden, Zürich, Switzerland.; Medlin F; Stroke Unit, Cantonal Hospital Fribourg, Fribourg, Switzerland.; Cereda C; Stroke Center, Neurocenter of Southern Switzerland, Lugano, Switzerland.; Bolognese M; Neurocenter, Cantonal Hospital of Lucerne, Lucerne, Switzerland.; Kägi G; Department of Neurology, Stroke Research Center Bern, Inselspital University Hospital Bern and University of Bern, Bern, Switzerland.; Department of Neurology, Cantonal Hospital of St. Gallen, St. Gallen, Switzerland.; Renaud S; Neurology and Stroke Unit, Neuchâtel Hospital Network, Neuchâtel, Switzerland.; Niederhauser J; Stroke Unit, Groupement hospitalier de l'ouest lémanique, Nyon, Switzerland.; Bonvin C; Stroke Unit, Hôpital du Valais, Sion, Switzerland.; Schärer M; Stroke Unit, Bürgerspital Solothurn, Solothurn, Switzerland.; Mono ML; Stroke Unit, Stadtspital Triemli, Zurich, Switzerland.; Luft A; Department of Neurology, University Hospital Zurich, Zurich, Switzerland.; Rodic-Tatic B; Stroke Unit, Cantonal Hospital Winterthur, Winterthur, Switzerland.; Fischer U; Department of Neurology, Stroke Research Center Bern, Inselspital University Hospital Bern and University of Bern, Bern, Switzerland.; Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland.; Jung S; Department of Neurology, Stroke Research Center Bern, Inselspital University Hospital Bern and University of Bern, Bern, Switzerland.; Arnold M; Department of Neurology, Stroke Research Center Bern, Inselspital University Hospital Bern and University of Bern, Bern, Switzerland.; Meinel T; Department of Neurology, Stroke Research Center Bern, Inselspital University Hospital Bern and University of Bern, Bern, Switzerland.; Seiffge D; Department of Neurology, Stroke Research Center Bern, Inselspital University Hospital Bern and University of Bern, Bern, Switzerland.

Publisher: SAGE Publications Ltd Country of Publication: England NLM ID: 101688446 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2396-9881 (Electronic) Linking ISSN: 23969873 NLM ISO Abbreviation: Eur Stroke J Subsets: MEDLINE

Fischer U; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Koga M; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Strbian D; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Branca M; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Abend S; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Trelle S; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Paciaroni M; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Thomalla G; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Michel P; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Nedeltchev K; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Bonati LH; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Ntaios G; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Gattringer T; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Sandset EC; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Kelly P; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Lemmens R; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Sylaja PN; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Aguiar de Sousa D; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Bornstein NM; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Gdovinova Z; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Yoshimoto T; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Tiainen M; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Thomas H; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Krishnan M; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Shim GC; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Gumbinger C; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Vehoff J; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Zhang L; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Matsuzono K; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Kristoffersen E; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Desfontaines P; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Vanacker P; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Alonso A; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Yakushiji Y; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Kulyk C; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Hemelsoet D; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Poli S; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Paiva Nunes A; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Caracciolo N; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Slade P; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Demeestere J; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Salerno A; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Kneihsl M; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Kahles T; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Giudici D; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Tanaka K; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Räty S; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Hidalgo R; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Werring DJ; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Göldlin M; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Arnold M; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Ferrari C; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Beyeler S; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Fung C; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Weder BJ; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Tatlisumak T; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Fenzl S; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Rezny-Kasprzak B; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Hakim A; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Salanti G; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Bassetti C; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Gralla J; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Seiffge DJ; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Horvath T; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).; Dawson J; From the Department of Neurology, University Hospital Basel, University of Basel, Basel (U.F., T.K.), the Department of Neurology (U.F., S.A., K.N., M.G., M.A., C. Ferrari, S.B., C.B., D.J.S., T.H.), the Support Center for Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology (B.J.W.), and the Institute for Diagnostic and Interventional Neuroradiology (S.F., B.R.-K., A.H., J.G.), University Hospital Bern, and CTU Bern (M.B., S.T.), Institute of Social and Preventive Medicine (G.S.), University of Bern, Bern, the Department of Neurology, University Hospital Lausanne, University of Lausanne, Lausanne (P.M., A.S.), the Department of Neurology, Cantonal Hospital Aarau, Aarau (K.N., T.K.), the Research Department, Reha Rheinfelden, Rheinfelden (L.H.B.), and the Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen (J.V.) - all in Switzerland; the Departments of Cerebrovascular Medicine (M. Koga, K.T.) and Neurology (T.Y.), National Cerebral and Cardiovascular Center, Osaka, the Division of Neurology, Department of Medicine, Jichi Medical University, Tochigi (K.M.), and the Department of Neurology, Kansai Medical University, Hirakata (Y.Y.) - all in Japan; the Department of Neurology, Helsinki University Hospital, and University of Helsinki, Helsinki (D.S., M.T., S.R.); Internal, Vascular, and Emergency Medicine, Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia (M.P., D.G.), and the Department of Human Neurosciences, University La Sapienza, Rome (N.C.) - both in Italy; the Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg (G.T.), the Department of Neurology, Heidelberg University Hospital (C.G.), and the Department of Neurology, Medical Faculty Mannheim, University of Heidelberg (A.A.), Heidelberg, the Department of Neurology and Stroke and the Hertie Institute for Clinical Brain Research, Tübingen University, Tübingen (S.P.), and the Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg (C. Fung) - all in Germany; the Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece (G.N.); the Department of Neurology, and the Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University of Graz, Graz (T.G., M. Kneihsl), and the Department of Neurology 2, Kepler University Hospital, Johannes Kepler University, Linz (C.K.) - both in Austria; the Department of Neurology, Oslo University Hospital (E.-C.S.), the Department of General Practice, University of Oslo (E.K.), and the Norwegian Air Ambulance Foundation (E.-C.S.), Oslo, and the Department of Neurology, Akershus University Hospital, Lørenskog (E.K.) - all in Norway; the Department of Neurology, Mater Misericordiae University Hospital, Dublin (P.K.); KU Leuven, Department of Neurosciences, Experimental Neurology, and the Department of Neurology, University Hospitals Leuven, Leuven (R.L., J. Demeestere), the Department of Neurology, Comprehensive Stroke Unit, CHC MontLégia Hospital, Liège (P.D.), the Department of Neurology, Algemeen Ziekenhuis Groeninge Kortrijk, Kortrijk (P.V.), the Neurovascular Center and Stroke Unit Antwerp, Antwerp University Hospital, and the Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp (P.V.), and the Department of Neurology, Ghent University Hospital, Ghent (D.H.) - all in Belgium; Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India (P.N.S.); the Stroke Center, Lisbon Central University Hospital (D.A.S., A.P.N.) and Faculty of Medicine, University of Lisbon (D.A.S.) - both in Lisbon, Portugal; the Department of Neurology, Shaare Zedek Medical Center, Jerusalem (N.M.B.); the Department of Neurology, Faculty of Medicine, Pavol Jozef Safarik University, and University Hospital Louis Pasteur - both in Košice, Slovakia (Z.G.); Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Rhyl (H.T., R.H.), the Stroke Unit, Morriston Hospital, Swansea Bay University Health Board, Swansea (M. Krishnan, P.S.), the Stroke Department, University Hospital of North Durham, Durham (G.C.S.), the Department of Neurology, St. George's University Hospital (L.Z.), and the Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Queen Square Institute of Neurology, University College London (D.J.W.), London, and the School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow (J. Dawson) - all in the United Kingdom; and the Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, and the Department of Neurology, Sahlgrenska University Hospital - both in Gothenburg, Sweden (T.T.).

Publisher: Massachusetts Medical Society Country of Publication: United States NLM ID: 0255562 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1533-4406 (Electronic) Linking ISSN: 00284793 NLM ISO Abbreviation: N Engl J Med Subsets: MEDLINE

Schegk E; Department of Neurology, University Hospital and University of Berne, Berne, Switzerland.; Beiser I; Department of Neurology, Cantonal Hospital Aarau, Tellstrasse 25, CH-5011, Aarau, Switzerland.; Achtnichts L; Department of Neurology, Cantonal Hospital Aarau, Tellstrasse 25, CH-5011, Aarau, Switzerland.; Nedeltchev K; Department of Neurology, Cantonal Hospital Aarau, Tellstrasse 25, CH-5011, Aarau, Switzerland.; Bertschi M; Department of Neurology, Cantonal Hospital Aarau, Tellstrasse 25, CH-5011, Aarau, Switzerland.; Gschwind M; Department of Neurology, Cantonal Hospital Aarau, Tellstrasse 25, CH-5011, Aarau, Switzerland. markus.gschwind@ksa.ch.; Department of Neurology, Geneva University Hospitals and University of Geneva, Geneva, Switzerland. markus.gschwind@ksa.ch.

Publisher: Springer-Verlag Country of Publication: Germany NLM ID: 0423161 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1432-1459 (Electronic) Linking ISSN: 03405354 NLM ISO Abbreviation: J Neurol Subsets: MEDLINE

Maulucci F; Stroke Centre, Neurology Department, Neurocentre of Southern Switzerland, EOC, Lugano, Switzerland.; Disanto G; Stroke Centre, Neurology Department, Neurocentre of Southern Switzerland, EOC, Lugano, Switzerland.; Bianco G; Stroke Centre, Neurology Department, Neurocentre of Southern Switzerland, EOC, Lugano, Switzerland.; Pileggi M; Stroke Centre, Interventional and Diagnostic Neuroradiology, Neurocentre of Southern Switzerland, EOC, Lugano, Switzerland.; Fischer U; Department of Neurology, University Hospital Bern, Bern, Switzerland.; Department of Neurology and Stroke Centre, University Hospital Basel, Basel, Switzerland.; Padlina G; Department of Neurology, University Hospital Bern, Bern, Switzerland.; Strambo D; Lausanne University Hospital, Stroke Centre, Neurology Service, Lausanne, Switzerland.; Michel P; Lausanne University Hospital, Stroke Centre, Neurology Service, Lausanne, Switzerland.; Kahles T; Department of Neurology, Kantonsspital Aarau, Aarau, Switzerland.; Nedeltchev K; Department of Neurology, Kantonsspital Aarau, Aarau, Switzerland.; Fisch U; Department of Neurology and Stroke Centre, University Hospital Basel, Basel, Switzerland.; Bonati L; Department of Neurology and Stroke Centre, University Hospital Basel, Basel, Switzerland.; Kägi G; Department of Neurology, Kantonsspital St. Gallen, St. Gallen, Switzerland.; Escribano Paredes JB; Department of Neurology, Hôpitaux Universitaires de Genève, Geneva, Switzerland.; Carrera E; Department of Neurology, Hôpitaux Universitaires de Genève, Geneva, Switzerland.; Nyffeler T; Luzerner Kantonsspital, Centre of Neurology and Neurorehabilitation, Luzern, Switzerland.; Bolognese M; Luzerner Kantonsspital, Centre of Neurology and Neurorehabilitation, Luzern, Switzerland.; Wegener S; Universitätsspital Zürich, Neurology, Zürich, Switzerland.; Luft A; Universitätsspital Zürich, Neurology, Zürich, Switzerland.; Schelosky L; Kantonsspital Münsterlingen, Division of Neurology, Münsterlingen, Switzerland.; Medlin F; Stroke Unit, Division of Neurology, HFR Fribourg, Fribourg, Switzerland.; von Reding A; Neurology, Kantonsspital Winterthur, Winterthur, Switzerland.; Peters N; Stroke Centre, Klinik Hirslanden, Zurich, Switzerland.; Renaud S; Division of Neurology, Pourtalès Hospital, Neuchatel, Switzerland.; Mono ML; Stadtspital Waid und Triemli, Stroke Unit, Zürich, Switzerland.; Remonda L; Department of Interventional Neuroradiology, Kantonsspital Aarau, Aarau, Switzerland.; Machi P; Department of Interventional Neuroradiology, Hôpitaux Universitaires de Genève, Geneva, Switzerland.; Psychogios MN; Department of Interventional Neuroradiology, University Hospital Basel, Basel, Switzerland.; Kaesmacher J; University Hospital Bern, Inselspital, Interventional Neuroradiology, Bern, Switzerland.; Mordasini P; University Hospital Bern, Inselspital, Interventional Neuroradiology, Bern, Switzerland.; Cereda CW; Stroke Centre, Neurology Department, Neurocentre of Southern Switzerland, EOC, Lugano, Switzerland.; Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland.

Publisher: SAGE Publications Ltd Country of Publication: England NLM ID: 101688446 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2396-9881 (Electronic) Linking ISSN: 23969873 NLM ISO Abbreviation: Eur Stroke J Subsets: MEDLINE

Rochas V; EEG and Epilepsy Unit, Department of Neurology University Hospital Geneva and University of Geneva, 1201 Geneva, Switzerland.; Gschwind M; EEG and Epilepsy Unit, Department of Neurology University Hospital Geneva and University of Geneva, 1201 Geneva, Switzerland.; Department of Neurology, Kantonsspital Aarau, 5001 Aarau, Switzerland.; Nedeltchev K; Department of Neurology, Kantonsspital Aarau, 5001 Aarau, Switzerland.; Seeck M; EEG and Epilepsy Unit, Department of Neurology University Hospital Geneva and University of Geneva, 1201 Geneva, Switzerland.

Publisher: Oxford University Press Country of Publication: England NLM ID: 101755125 Publication Model: eCollection Cited Medium: Internet ISSN: 2632-1297 (Electronic) Linking ISSN: 26321297 NLM ISO Abbreviation: Brain Commun Subsets: PubMed not MEDLINE

Noseda R; Division of Clinical Pharmacology and Toxicology, Institute of Pharmacological Sciences of Southern Switzerland, Ente Ospedaliero Cantonale, Lugano, Switzerland.; Rea F; Department of Statistics and Quantitative Methods, Unit of Biostatistics, Epidemiology and Public Health, University of Milano-Bicocca, Milan, Italy.; National Centre for Healthcare Research and Pharmacoepidemiology, University of Milano-Bicocca, Milan, Italy.; Pagnamenta A; Clinical Trial Unit, Ente Ospedaliero Cantonale, Lugano, Switzerland.; Department of Intensive Care, Ente Ospedaliero Cantonale, Lugano, Switzerland.; Division of Pneumology, University of Geneva, Geneva, Switzerland.; Agazzi P; Neurocenter of Southern Switzerland, Ospedale Regionale di Lugano, Ente Ospedaliero Cantonale, via Tesserete 46, 6900, Lugano, Switzerland.; Bianco G; Neurocenter of Southern Switzerland, Ospedale Regionale di Lugano, Ente Ospedaliero Cantonale, via Tesserete 46, 6900, Lugano, Switzerland.; Sihabdeen S; Neurocenter of Southern Switzerland, Ospedale Regionale di Lugano, Ente Ospedaliero Cantonale, via Tesserete 46, 6900, Lugano, Switzerland.; Seiffge D; Department of Neurology, University Hospital Bern, Bern, Switzerland.; Michel P; Stroke Center, Neurology Service, Lausanne University Hospital, Lausanne, Switzerland.; Nedeltchev K; Department of Neurology, Kantonsspital Aarau, Aarau, Switzerland.; Bonati L; Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland.; Kägi G; Department of Neurology, Kantonsspital St. Gallen, St. Gallen, Switzerland.; Niederhauser J; Stroke Unit, Hopital Nyon, Switzerland.; Nyffeler T; Center of Neurology and Neurorehabilitation, Luzerner Kantonsspital, Luzern, Switzerland.; Luft A; Universitätsspital Zürich, Neurology, Zürich, Switzerland.; Wegener S; Universitätsspital Zürich, Neurology, Zürich, Switzerland.; Schelosky L; Division of Neurology, Kantonsspital Münsterlingen, Münsterlingen, Switzerland.; Medlin F; Division of Neurology, HFR Fribourg, Stroke Unit, Fribourg, Switzerland.; Rodic B; Kantonsspital Winterthur, Neurology, Winterthur, Switzerland.; Peters N; Department of Neurology and Stroke Center, Hirslanden Hospital, Zurich, Switzerland.; Renaud S; Division of Neurology, Pourtalès Hospital, Neuchatel, Switzerland.; Mono ML; Stroke Unit, Stadtspital Waid und Triemli, Zürich, Switzerland.; Carrera E; Department of Neurology, Hôpitaux Universitaires de Genève, Geneva, Switzerland.; Fischer U; Department of Neurology, University Hospital Bern, Bern, Switzerland.; Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland.; Ceschi A; Division of Clinical Pharmacology and Toxicology, Institute of Pharmacological Sciences of Southern Switzerland, Ente Ospedaliero Cantonale, Lugano, Switzerland.; Clinical Trial Unit, Ente Ospedaliero Cantonale, Lugano, Switzerland.; Faculty of Biomedical Sciences, Università della Svizzera italiana, Lugano, Switzerland.; Department of Clinical Pharmacology and Toxicology, University Hospital Zurich, Zurich, Switzerland.; Cereda CW; Neurocenter of Southern Switzerland, Ospedale Regionale di Lugano, Ente Ospedaliero Cantonale, via Tesserete 46, 6900, Lugano, Switzerland. carlo.cereda@eoc.ch.; Faculty of Biomedical Sciences, Università della Svizzera italiana, Lugano, Switzerland. carlo.cereda@eoc.ch.

Publisher: Adis, Springer International Country of Publication: New Zealand NLM ID: 9431220 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1179-1934 (Electronic) Linking ISSN: 11727047 NLM ISO Abbreviation: CNS Drugs Subsets: MEDLINE