부산대학교 도서관

Khanna, O.; Farrell, C.J.; Hattar, E.; Al Saiegh, F.; Ghosh, R.; Theofanis, T.N.; Hoffman, M.; Sharan, A.D.

In: Journal of Neurosurgery. (Journal of Neurosurgery, May 2022, 136(5):1495-1500)

Khanna, O.; Hafazalla, K.; Saiegh, F.A.; Tahir, R.; Schunemann, V.; Theofanis, T.N.; Mouchtouris, N.; Gooch, M.R.; Tjoumakaris, S.; Rosenwasser, R.H.; Jabbour, P.M.

In: Clinical Neurology and Neurosurgery. (Clinical Neurology and Neurosurgery, July 2021, 206)

Murchison, A.P.; Sweid, A.; Theofanis, T.N.; Tjoumakaris, S.I.; Jabbour, P.M.; Dharia, R.; Bilyk, J.R.

In: Clinical Neurology and Neurosurgery. (Clinical Neurology and Neurosurgery, February 2021, 201)

Khanna, O.; Baldassari, M.P.; Al Saiegh, F.; Mouchtouris, N.; Ghosh, R.; Theofanis, T.N.; Evans, J.J.; Tjoumakaris, S.; Rosenwasser, R.H.; Jabbour, P.M.; Gooch, M.R.

In: World Neurosurgery. (World Neurosurgery, February 2021, 146:e779-e785)

Theofanis, T.N.; Schmidt, R.F.; Stricsek, G.P.; Rosenwasser, R.H.; Sharan, A.D.; Rochani, A.K.; Kaushal, G.; Lang, M.J.; Iacovitti, L.

In: Scientia Pharmaceutica. (Scientia Pharmaceutica, September 2020, 88(3):1-12)

Schmidt, R.F.; Theofanis, T.N.; Stricsek, G.P.; Rosenwasser, R.H.; Sharan, A.D.; Lin, R.; Lebrun, A.; Hooper, D.C.; Iacovitti, L.; Lang, M.J.

In: Brain Research. (Brain Research, 1 September 2019, 1718:231-241)

Ghobrial, G.M.; Theofanis, T.N.; Harrop, J.S.; Jeyamohan, H.; Jeyamohan, S.

In: Seminars in Spine Surgery. (Seminars in Spine Surgery, 1 June 2016, 28(2):75-79)

Theofanis, T.N.; Khanna, O.; Stefanelli, A.; Al Saiegh, F.; Farrell, C.; Jabbour, P.; Harrop, J.S.; Rosenwasser, R.H.; Sharan, A.

In: Neurosurgery. (Neurosurgery, 1 August 2020, 87(2):E249)

Sarraj A; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Hassan AE; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Abraham MG; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Ortega-Gutierrez S; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Kasner SE; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Hussain MS; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Chen M; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Blackburn S; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Sitton CW; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Churilov L; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Sundararajan S; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Hu YC; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Herial NA; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Jabbour P; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Gibson D; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Wallace AN; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Arenillas JF; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Tsai JP; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Budzik RF; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Hicks WJ; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Kozak O; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Yan B; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Cordato DJ; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Manning NW; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Parsons MW; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Hanel RA; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Aghaebrahim AN; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Wu TY; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Cardona-Portela P; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Pérez de la Ossa N; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Schaafsma JD; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Blasco J; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Sangha N; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Warach S; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Gandhi CD; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Kleinig TJ; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Sahlein D; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Elijovich L; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Tekle W; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Samaniego EA; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Maali L; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Abdulrazzak MA; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Psychogios MN; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Shuaib A; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Pujara DK; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Shaker F; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Johns H; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Sharma G; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Yogendrakumar V; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Ng FC; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Rahbar MH; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Cai C; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Lavori P; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Hamilton S; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Nguyen T; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Fifi JT; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Davis S; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Wechsler L; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Pereira VM; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Lansberg MG; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Hill MD; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Grotta JC; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Ribo M; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Campbell BC; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).; Albers GW; From the Departments of Neurology (A. Sarraj, S.S., D.K.P.) and Neurosurgery (Y.C.H.), University Hospitals Cleveland Medical Center-Case Western Reserve University, and the Cerebrovascular Center, Cleveland Clinic (M.S.H., J.P.T., M.A.A.), Cleveland, and the Departments of Neurointerventional Radiology (R.F.B.) and Neurology (W.J.H.), OhioHealth-Riverside Methodist Hospital, Columbus - all in Ohio; the Neuroscience Institute, Valley Baptist Medical Center, Harlingen (A.E.H., W.T.), the Departments of Neurosurgery (S.B., F.S.), Diagnostic and Interventional Imaging (C.W.S.), and Internal Medicine (M.H.R., C.C.), McGovern Medical School at UTHealth, and the Mobile Stroke Unit, Memorial Hermann Hospital (J.C.G.), Houston, and the Department of Neurology, Dell Medical School at the University of Texas at Austin, Austin (S.W.) - all in Texas; the Department of Neurology, University of Kansas Medical Center, Kansas City (M.G.A., L.M.); the Departments of Neurosurgery and Radiology (S.O.-G.) and Neurology (E.A.S.), University of Iowa Hospitals and Clinics, Iowa City; the Division of Vascular Neurology, University of Pennsylvania (S.E.K.), the Department of Neurosurgery, Thomas Jefferson University Hospital (N.A.H., P.J.), and the Department of Neurology, Hospital of the University of Pennsylvania (L.W.), Philadelphia, and Neurovascular Associates of Abington, Jefferson Health, Abington (O.K.) - all in Pennsylvania; the Department of Neurosurgery, Rush University Medical Center, Chicago (M.C.); Melbourne Medical School, University of Melbourne (L.C., H.J.), the Melbourne Brain Centre, Royal Melbourne Hospital, and the Department of Medicine, University of Melbourne (B.Y., G.S., V.Y., F.C.N., S.D., B.C.C.), and the Florey Institute of Neuroscience and Mental Health (L.C., B.C.C.), Parkville, VIC, the Departments of Neurology (D.J.C., M.W.P.) and Neurosurgery (N.W.M.), Liverpool Hospital, and the Department of Neurology, University of New South Wales (M.W.P.), Liverpool, and the Neurology Service, Royal Adelaide Hospital, Adelaide, SA (T.J.K.) - all in Australia; the Department of Neurosurgery, Ascension Columbia St. Mary's Hospital, Milwaukee (D.G., A.N.W.); the Department of Internal Medicine, Hospital Clínico Universitario de Valladolid, Valladolid (J.F.A.), the Department of Neurology, Bellvitge University Hospital (P.C.-P.), the Department of Interventional Radiology, Hospital Clínic de Barcelona (J.B.), and the Department of Neurology, Hospital Vall d'Hebrón (M.R.), Barcelona, and the Department of Neurology, Hospital Universitari Germans Trias i Pujol, Badalona (N.P.O.) - all in Spain; Neurosurgery, Corewell Health, Grand Rapids, MI (J.P.T.); Lyerly Neurosurgery, Baptist Medical Center Jacksonville, Jacksonville, FL (R.A.H., A.N.A.); the Department of Neurology, Christchurch Hospital, Christchurch, New Zealand (T.Y.W.); the Divisions of Internal Medicine and Neurology, Toronto Western Hospital (J.D.S.), and the Division of Neurology, St. Michael's Hospital (V.M.P.), Toronto, the Divisions of Internal Medicine and Neurology, University of Alberta, Edmonton (A. Shuaib), and the Department of Clinical Neurosciences, University of Calgary, Calgary, AB (M.D.H.) - all in Canada; Neurological Services, Kaiser Permanente Southern California, Los Angeles (N.S.), the Departments of Biomedical Data Science (P.L.) and Neurology (M.G.L., G.W.A.), Stanford University, Stanford, and MAPS Public Benefit Corporation, San Jose (S.H.) - all in California; the Department of Neurosurgery, Westchester Medical Center and New York Medical College, Valhalla (C.D.G.), and the Department of Neurology, Icahn School of Medicine at Mount Sinai, New York (J.T.F.) - both in New York; Interventional Neuroradiology, Goodman Campbell Brain and Spine, Carmel, IN (D.S.); Neurology, Semmes Murphey Clinic, Memphis, TN (L.E.); Neuroradiology, University Hospital Basel, Basel, Switzerland (M.N.P.); and the Neurology Department, Boston Medical Center, Boston (T.N.).

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