부산대학교 도서관

Gordon, Paul H ; Moore, Dan H ; Miller, Robert G ; Florence, Julaine M ; Verheijde, Joseph L ; Doorish, Carolyn ; Hilton, Joan F ; Spitalny, G Mark ; MacArthur, Robert B ; Mitsumoto, Hiroshi ; Neville, Hans E ; Boylan, Kevin ; Mozaffar, Tahseen ; Belsh, Jerry M ; Ravits, John ; Bedlack, Richard S ; Graves, Michael C ; McCluskey, Leo F ; Barohn, Richard J ; Tandan, Rup

In Lancet Neurology 2007 6(12):1045-1053

McDonald, Craig M; Henricson, Erik K; Abresch, R Ted; Han, Jay J; Escolar, Diana M; Florence, Julaine M; Duong, Tina; Arrieta, Adrienne; Clemens, Paula R; Hoffman, Eric P; Cnaan, Avital; Cinrg Investigators (CORPORATE AUTHOR)

Muscle & Nerve. Jul2013, Vol. 48 Issue 1, p32-54. 23p.

Connolly AM; Department of Neurology, Washington University School of Medicine in Saint Louis, St Louis, Missouri, 63110, USA.; Department of Pediatrics, Washington University School of Medicine in Saint Louis, St Louis, Missouri, USA.; Zaidman CM; Department of Neurology, Washington University School of Medicine in Saint Louis, St Louis, Missouri, 63110, USA.; Department of Pediatrics, Washington University School of Medicine in Saint Louis, St Louis, Missouri, USA.; Golumbek PT; Department of Neurology, Washington University School of Medicine in Saint Louis, St Louis, Missouri, 63110, USA.; Department of Pediatrics, Washington University School of Medicine in Saint Louis, St Louis, Missouri, USA.; Cradock MM; Department of Pediatrics, Washington University School of Medicine in Saint Louis, St Louis, Missouri, USA.; Flanigan KM; Department of Pediatrics, Nationwide Children's Hospital, Ohio State University, Columbus, Ohio, USA.; Kuntz NL; Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.; Finkel RS; Department of Pediatrics, Nemours Children's Hospital, Orlando, Florida, USA.; McDonald CM; Department of Physical Medicine and Rehabilitation, University of California, Davis Medical Center, Sacramento, California, USA.; Iannaccone ST; Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas, USA.; Anand P; Department of Neurology, Washington University School of Medicine in Saint Louis, St Louis, Missouri, 63110, USA.; Siener CA; Department of Neurology, Washington University School of Medicine in Saint Louis, St Louis, Missouri, 63110, USA.; Florence JM; Department of Neurology, Washington University School of Medicine in Saint Louis, St Louis, Missouri, 63110, USA.; Lowes LP; Department of Pediatrics, Nationwide Children's Hospital, Ohio State University, Columbus, Ohio, USA.; Alfano LN; Department of Pediatrics, Nationwide Children's Hospital, Ohio State University, Columbus, Ohio, USA.; Johnson LB; Department of Physical Medicine and Rehabilitation, University of California, Davis Medical Center, Sacramento, California, USA.; Nicorici A; Department of Physical Medicine and Rehabilitation, University of California, Davis Medical Center, Sacramento, California, USA.; Nelson LL; Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas, USA.; Mendell JR; Department of Pediatrics, Nationwide Children's Hospital, Ohio State University, Columbus, Ohio, USA.

Publisher: John Wiley & Sons Country of Publication: United States NLM ID: 7803146 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1097-4598 (Electronic) Linking ISSN: 0148639X NLM ISO Abbreviation: Muscle Nerve Subsets: MEDLINE

Findlay, Andrew R; Wein, Nicolas; Kaminoh, Yuuki; Taylor, Laura E; Dunn, Diane M; Mendell, Jerry R; King, Wendy M; Pestronk, Alan; Florence, Julaine M; Mathews, Katherine D; Finkel, Richard S; Swoboda, Kathryn J; Howard, Michael T; Day, John W; Mcdonald, Craig; Nicolas, Aurélie; Le Rumeur, Elisabeth; Weiss, Robert B; Flanigan, Kevin M

Annals of Neurology, vol 77, iss 4

Mcdonald, Craig M; Henricson, Erik K; Abresch, R Ted; Florence, Julaine M; Eagle, Michelle; Gappmaier, Eduard; Glanzman, Allan M; Group, PTC124‐GD‐007‐DMD Study; Spiegel, Robert; Barth, Jay; Elfring, Gary; Reha, Allen; Peltz, Stuart

Muscle Nerve
Muscle & Nerve, vol 48, iss 3

Wang, Ching H; Dowling, James J; North, Kathryn; Schroth, Mary K; Sejersen, Thomas; Shapiro, Frederic; Bellini, Jonathan; Weiss, Hali; Guillet, Marc; Amburgey, Kimberly; Apkon, Susan; Bertini, Enrico; Bonnemann, Carsten; Clarke, Nigel; Connolly, Anne M; Estournet-Mathiaud, Brigitte; Fitzgerald, Dominic; Florence, Julaine M; Gee, Richard; Gurgel-Giannetti, Juliana; Glanzman, Allan M; Hofmeister, Brittany; Jungbluth, Heinz; Koumbourlis, Anastassios C; Laing, Nigel G; Main, Marion; Morrison, Leslie A; Munns, Craig; Rose, Kristy; Schuler, Pamela M; Sewry, Caroline; Storhaug, Kari; Vainzof, Mariz; Yuan, Nanci

Journal of Child Neurology. 27:363-382

Wang, Ching; Bonnemann, Carsten G; Rutkowski, Anne; Sejersen, Thomas; Bellini, Jonathan; Battista, Vanessa; Florence, Julaine M; Schara, Ulrike; Schuler, Pamela M; Wahbi, Kari; Aloysius, Annie; Bash, Robert O; Béroud, Christophe; Bertini, Enrico; Bushby, Kate; Cohn, Ronald D; Connolly, Anne M; Deconinck, Nicolas; Desguerre, Isabelle; Eagle, Michelle; Estournet-Mathiaud, Brigitte; Ferreiro, Ana; Fujak, Albert; Goemans, Nathalie; Iannaccone, Susan T; Jouinot, Patricia; Main, Marion; Melacini, Paola; Mueller-Felber, Wolfgang; Muntoni, Francesco; Nelson, Leslie L; Rahbek, Jes; Quijano-Roy, Susana; Sewry, Caroline; Storhaug, Kari; Simonds, Anita; Tseng, Brian; Vajsar, Jiri; Vianello, Andrea; Zeller, Reinhard; For Congenital Muscular Dystrophy, International Standard of Care Committee

Journal of Child Neurology. 25:1559-1581

Connolly AM; Department of Neurology, Washington University School of Medicine, Saint Louis, Missouri, USA. connollya@neuro.wustl.edu.; Department of Pediatrics, Washington University School of Medicine, Saint Louis, Missouri, USA. connollya@neuro.wustl.edu.; Florence JM; Department of Neurology, Washington University School of Medicine, Saint Louis, Missouri, USA.; Zaidman CM; Department of Neurology, Washington University School of Medicine, Saint Louis, Missouri, USA.; Department of Pediatrics, Washington University School of Medicine, Saint Louis, Missouri, USA.; Golumbek PT; Department of Neurology, Washington University School of Medicine, Saint Louis, Missouri, USA.; Department of Pediatrics, Washington University School of Medicine, Saint Louis, Missouri, USA.; Mendell JR; Department of Pediatrics, Ohio State University, and the Center for Gene Therapy, Nationwide Children's Hospital, Columbus, Ohio, USA.; Flanigan KM; Department of Pediatrics, Ohio State University, and the Center for Gene Therapy, Nationwide Children's Hospital, Columbus, Ohio, USA.; Karachunski PI; Department of Neurology, University of Minnesota, Minneapolis, Minnesota, USA.; Day JW; Department of Neurology, Stanford University, Stanford, California, USA.; McDonald CM; Department Physical Medicine and Rehabilitation, University of California, Davis Medical Center, Sacramento, California, USA.; Darras BT; Department of Neurology, Harvard University, Boston Children's Hospital, Boston, Massachusetts, USA.; Kang PB; Division of Pediatric Neurology, University of Florida College of Medicine, Gainesville, Florida, USA.; Siener CA; Department of Neurology, Washington University School of Medicine, Saint Louis, Missouri, USA.; Gadeken RK; Department of Neurology, Washington University School of Medicine, Saint Louis, Missouri, USA.; Anand P; Department of Neurology, Washington University School of Medicine, Saint Louis, Missouri, USA.; Schierbecker JR; Department of Neurology, Washington University School of Medicine, Saint Louis, Missouri, USA.; Malkus EC; Department of Neurology, Washington University School of Medicine, Saint Louis, Missouri, USA.; Lowes LP; Department of Pediatrics, Ohio State University, and the Center for Gene Therapy, Nationwide Children's Hospital, Columbus, Ohio, USA.; Alfano LN; Department of Pediatrics, Ohio State University, and the Center for Gene Therapy, Nationwide Children's Hospital, Columbus, Ohio, USA.; Johnson L; Department Physical Medicine and Rehabilitation, University of California, Davis Medical Center, Sacramento, California, USA.; Nicorici A; Department Physical Medicine and Rehabilitation, University of California, Davis Medical Center, Sacramento, California, USA.; Kelecic JM; Department of Neurology, University of Minnesota, Minneapolis, Minnesota, USA.; Quigley J; Department of Neurology, Harvard University, Boston Children's Hospital, Boston, Massachusetts, USA.; Pasternak AE; Department of Neurology, Harvard University, Boston Children's Hospital, Boston, Massachusetts, USA.; Miller JP; Division of Biostatistics, Washington University School of Medicine, Saint Louis, Missouri, USA.

Publisher: John Wiley & Sons Country of Publication: United States NLM ID: 7803146 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1097-4598 (Electronic) Linking ISSN: 0148639X NLM ISO Abbreviation: Muscle Nerve Subsets: MEDLINE

Connolly AM; Department of Neurology, Washington University School of Medicine in Saint Louis, St. Louis, Missouri, 63110, USA; Department of Pediatrics, Washington University School of Medicine in Saint Louis, St. Louis, Missouri, USA.; Malkus EC; Mendell JR; Flanigan KM; Miller JP; Schierbecker JR; Siener CA; Golumbek PT; Zaidman CM; Mcdonald CM; Johnson L; Nicorici A; Karachunski PI; Day JW; Kelecic JM; Lowes LP; Alfano LN; Darras BT; Kang PB; Quigley J; Pasternak AE; Florence JM

Publisher: John Wiley & Sons Country of Publication: United States NLM ID: 7803146 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1097-4598 (Electronic) Linking ISSN: 0148639X NLM ISO Abbreviation: Muscle Nerve Subsets: MEDLINE

Connolly, Anne M; Florence, Julaine M; Cradock, Mary M; Eagle, Michelle; Flanigan, Kevin M; McDonald, Craig M; Karachunski, Peter I; Darras, Basil T; Bushby, Kate; Malkus, Elizabeth C; Golumbek, Paul T; Zaidman, Craig M; Miller, J Philip; Mendell, Jerry R

Pediatric Neurology (PEDIATR NEUROL), Jun2014; 50(6): 557-563. (7p)

Henricson, Erik K; Abresch, R Ted; Cnaan, Avital; Hu, Fengming; Duong, Tina; Arrieta, Adrienne; Han, Jay; Escolar, Diana M; Florence, Julaine M; Clemens, Paula R; Hoffman, Eric P; McDonald, Craig M

Muscle & Nerve (MUSCLE NERVE), Jul2013; 48(1): 55-67. (13p)

Flanigan, Kevin M; Ceco, Ermelinda; Lamar, Kay-Marie; Kaminoh, Yuuki; Dunn, Diane M; Mendell, Jerry R; King, Wendy M; Pestronk, Alan; Florence, Julaine M; Mathews, Katherine D; Finkel, Richard S; Swoboda, Kathryn J; Gappmaier, Eduard; Howard, Michael T; Day, John W; McDonald, Craig; McNally, Elizabeth M; Weiss, Robert B

Annals of Neurology (ANN NEUROL), Apr2013; 73(4): 481-488. (8p)

Moore U; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Jacobs M; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; James MK; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Mayhew AG; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Fernandez-Torron R; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Feng J; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Cnaan A; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Eagle M; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Bettinson K; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Rufibach LE; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Lofra RM; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Blamire AM; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Carlier PG; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Mittal P; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Lowes LP; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Alfano L; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Rose K; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Duong T; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Berry KM; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Montiel-Morillo E; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Pedrosa-Hernández I; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Holsten S; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Sanjak M; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Ashida A; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Sakamoto C; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Tateishi T; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Yajima H; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Canal A; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Ollivier G; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Decostre V; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Mendez JB; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Sánchez-Aguilera Praxedes N; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Thiele S; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Siener C; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Shierbecker J; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Florence JM; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Vandevelde B; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; DeWolf B; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Hutchence M; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Gee R; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Prügel J; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Maron E; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Hilsden H; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Lochmüller H; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Grieben U; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Spuler S; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Tesi Rocha C; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Day JW; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Jones KJ; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Bharucha-Goebel DX; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Salort-Campana E; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Harms M; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Pestronk A; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Krause S; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Schreiber-Katz O; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Walter MC; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Paradas C; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Hogrel JY; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Stojkovic T; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Takeda S; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Mori-Yoshimura M; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Bravver E; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Sparks S; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Díaz-Manera J; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Bello L; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Semplicini C; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Pegoraro E; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Mendell JR; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Bushby K; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy.; Straub V; From the John Walton Muscular Dystrophy Research Centre (U.M., M.K.J., A.G.M., R.F.-T., M.E., K.B., R.M.L., H.H., H.L., K.B., V.S.), Newcastle University and Newcastle Hospitals NHS Foundation Trust, MRC Centre for Neuromuscular Diseases, Institute of Genetic Medicine, Central Parkway, Newcastle Upon Tyne, UK; Center for Translational Science (M.J., J.F., A. Cnaan), Division of Biostatistics and Study Methodology, Cooperative International Neuromuscular Research Group (T.D., B.D.), and Department of Neurology (D.X.B.-G.), Children's National Health System; Pediatrics, Epidemiology and Biostatistics (M.J., A. Cnaan), George Washington University, Washington, DC; Neuromuscular Area (R.F.-T.), Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain; Jain Foundation (L.E.R., P.M.), Seattle, WA; Magnetic Resonance Centre (A.M.B.), Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK; AIM & CEA NMR Laboratory (P.G.C.), Institute of Myology, Pitié-Salpêtrière University Hospital, 47-83, Paris, France; Research Institute at Nationwide Children's Hospital (L.P.L., L.A., K.M.B., J.R.M.), The Ohio State University, Columbus; Institute for Neuroscience and Muscle Research (K.R., M. Hutchence, K.J.J.), Children's Hospital at Westmead, University of Sydney, Australia; Lucile Salter Packard Children's Hospital at Stanford (T.D.), 24349, Neurology, Palo Alto, CA; Physical Medicine and Rehabilitation (E.M.-M., I.P.-H.), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Neuroscience Institute (S.H., M.S., E.B., S. Sparks), Carolinas Neuromuscular/ALS-MDA Center, Carolinas HealthCare System, Charlotte, NC; Department of Physical Rehabilitation (A.A., C. Sakamoto, T.T., H.Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Institut de Myologie (A. Canal, G.O., V.D., J.-Y.H., T.S.), AP-HP, GH Pitié-Salpêtrière, Paris, France; Neurorehabilitation Unit (J.B.M.), Rehabilitation Hospital Universitario Virgen del Rocío Sevilla; Neurophysiotherapy Department (N.S.-A.P.), Hospital Universitario Virgen del Rocío, Seville, Spain; Friedrich-Baur-Institute (S. Thiele, S.K., O.S.-K. M.C.W.), Department of Neurology, Ludwig-Maximilians-University of Munich, Germany; Department of Neurology (C. Siener, J.S., J.M.F., M. Harms, A.P.), Washington University School of Medicine, St. Louis, MO; Centre de Reference des Maladies Neuromusculaires PACA Réunion Rhone Alpes (B.V., E.S.-C.), Hopital de la Timone, Aix-Marseille Université, France; ELAN-PHYSIO (J.P., E.M.), Praxis für Physiotherapie Maron; Charite Muscle Research Unit (U.G., S. Spuler), Experimental and Clinical Research Center, a joint cooperation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany; Department of Neurology and Neurological Sciences (C.T.R., J.W.D.), Stanford University School of Medicine, CA; NIH (D.X.B.-G.), Bethesda, MD; Neuromuscular Unit (C.P.), Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Spain; Department of Neurology (S. Takeda, M.M.-Y.), National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan; Centro de Investigación Biomédica en Red en Enfermedades Raras (J.D.-M.); Neuromuscular Disorders Unit (J.D.-M.), Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; and Department of Neuroscience (L.B., C. Semplicini, E.P.), University of Padova, Italy. volker.straub@newcastle.ac.uk.

Publisher: Lippincott Williams & Wilkins Country of Publication: United States NLM ID: 0401060 Publication Model: Electronic Cited Medium: Internet ISSN: 1526-632X (Electronic) Linking ISSN: 00283878 NLM ISO Abbreviation: Neurology Subsets: MEDLINE; PubMed not MEDLINE

Argov Z; Department of Neurology, Hadassah University Medical Center, Jerusalem, Israel; †Physical Medicine and Rehabilitation Department, NYU Langone Medical Center-Rusk Institute, New York, NY; ‡Clinical Research Unit, Hadassah University Medical Center, Jerusalem, Israel; §Washington University School of Medicine, Neuromuscular Division, St. Louis, MO; ¶UCLA Department of Orthopaedic Surgery, Kameron Gait and Motion Analysis Laboratory, Los Angeles, CA; ‖NYU Division of Neurogenetics, New York, NY; UCLA Department of Neurology, Los Angeles, CA; and ††Clinical Outcomes Research and Evaluation, Ultragenyx Pharmaceutical, Inc, Novato, CA.; Bronstein F; Esposito A; Feinsod-Meiri Y; Florence JM; Fowler E; Greenberg MB; Malkus EC; Rebibo O; Siener CS; Caraco Y; Kolodny EH; Lau HA; Pestronk A; Shieh P; Skrinar AM; Mayhew JE

Publisher: Lippincott Williams & Wilkins Country of Publication: United States NLM ID: 100887391 Publication Model: Print Cited Medium: Internet ISSN: 1537-1611 (Electronic) Linking ISSN: 15220443 NLM ISO Abbreviation: J Clin Neuromuscul Dis Subsets: MEDLINE

Griggs RC; From the University of Rochester Medical Center (R.C.G., R.T.M., S.P.), NY; Washington University in St Louis (J.P.M., A.P., J.M.F.), MO; University of Manitoba and Children's Hospital Research Institute of Manitoba (C.R.G.), Winnipeg; Department of Paediatrics (D.L.F.), Holland Bloorview Kids Rehabilitation Hospital, University of Toronto, Canada; Nationwide Children's Hospital (J.R.M.); Ohio State University Wexner Medical Center (W.K., J.T.K.), Columbus; Muscular Dystrophy Association (V.C.), Marlton, NJ; CHU Sainte Justine (M.V.), Montreal, Canada; and Marathon Pharmaceuticals, LLC (J.S.D., J.M.M.), Northbrook, IL. Robert_Griggs@URMC.Rochester.edu.; Miller JP; From the University of Rochester Medical Center (R.C.G., R.T.M., S.P.), NY; Washington University in St Louis (J.P.M., A.P., J.M.F.), MO; University of Manitoba and Children's Hospital Research Institute of Manitoba (C.R.G.), Winnipeg; Department of Paediatrics (D.L.F.), Holland Bloorview Kids Rehabilitation Hospital, University of Toronto, Canada; Nationwide Children's Hospital (J.R.M.); Ohio State University Wexner Medical Center (W.K., J.T.K.), Columbus; Muscular Dystrophy Association (V.C.), Marlton, NJ; CHU Sainte Justine (M.V.), Montreal, Canada; and Marathon Pharmaceuticals, LLC (J.S.D., J.M.M.), Northbrook, IL.; Greenberg CR; From the University of Rochester Medical Center (R.C.G., R.T.M., S.P.), NY; Washington University in St Louis (J.P.M., A.P., J.M.F.), MO; University of Manitoba and Children's Hospital Research Institute of Manitoba (C.R.G.), Winnipeg; Department of Paediatrics (D.L.F.), Holland Bloorview Kids Rehabilitation Hospital, University of Toronto, Canada; Nationwide Children's Hospital (J.R.M.); Ohio State University Wexner Medical Center (W.K., J.T.K.), Columbus; Muscular Dystrophy Association (V.C.), Marlton, NJ; CHU Sainte Justine (M.V.), Montreal, Canada; and Marathon Pharmaceuticals, LLC (J.S.D., J.M.M.), Northbrook, IL.; Fehlings DL; From the University of Rochester Medical Center (R.C.G., R.T.M., S.P.), NY; Washington University in St Louis (J.P.M., A.P., J.M.F.), MO; University of Manitoba and Children's Hospital Research Institute of Manitoba (C.R.G.), Winnipeg; Department of Paediatrics (D.L.F.), Holland Bloorview Kids Rehabilitation Hospital, University of Toronto, Canada; Nationwide Children's Hospital (J.R.M.); Ohio State University Wexner Medical Center (W.K., J.T.K.), Columbus; Muscular Dystrophy Association (V.C.), Marlton, NJ; CHU Sainte Justine (M.V.), Montreal, Canada; and Marathon Pharmaceuticals, LLC (J.S.D., J.M.M.), Northbrook, IL.; Pestronk A; From the University of Rochester Medical Center (R.C.G., R.T.M., S.P.), NY; Washington University in St Louis (J.P.M., A.P., J.M.F.), MO; University of Manitoba and Children's Hospital Research Institute of Manitoba (C.R.G.), Winnipeg; Department of Paediatrics (D.L.F.), Holland Bloorview Kids Rehabilitation Hospital, University of Toronto, Canada; Nationwide Children's Hospital (J.R.M.); Ohio State University Wexner Medical Center (W.K., J.T.K.), Columbus; Muscular Dystrophy Association (V.C.), Marlton, NJ; CHU Sainte Justine (M.V.), Montreal, Canada; and Marathon Pharmaceuticals, LLC (J.S.D., J.M.M.), Northbrook, IL.; Mendell JR; From the University of Rochester Medical Center (R.C.G., R.T.M., S.P.), NY; Washington University in St Louis (J.P.M., A.P., J.M.F.), MO; University of Manitoba and Children's Hospital Research Institute of Manitoba (C.R.G.), Winnipeg; Department of Paediatrics (D.L.F.), Holland Bloorview Kids Rehabilitation Hospital, University of Toronto, Canada; Nationwide Children's Hospital (J.R.M.); Ohio State University Wexner Medical Center (W.K., J.T.K.), Columbus; Muscular Dystrophy Association (V.C.), Marlton, NJ; CHU Sainte Justine (M.V.), Montreal, Canada; and Marathon Pharmaceuticals, LLC (J.S.D., J.M.M.), Northbrook, IL.; Moxley RT 3rd; From the University of Rochester Medical Center (R.C.G., R.T.M., S.P.), NY; Washington University in St Louis (J.P.M., A.P., J.M.F.), MO; University of Manitoba and Children's Hospital Research Institute of Manitoba (C.R.G.), Winnipeg; Department of Paediatrics (D.L.F.), Holland Bloorview Kids Rehabilitation Hospital, University of Toronto, Canada; Nationwide Children's Hospital (J.R.M.); Ohio State University Wexner Medical Center (W.K., J.T.K.), Columbus; Muscular Dystrophy Association (V.C.), Marlton, NJ; CHU Sainte Justine (M.V.), Montreal, Canada; and Marathon Pharmaceuticals, LLC (J.S.D., J.M.M.), Northbrook, IL.; King W; From the University of Rochester Medical Center (R.C.G., R.T.M., S.P.), NY; Washington University in St Louis (J.P.M., A.P., J.M.F.), MO; University of Manitoba and Children's Hospital Research Institute of Manitoba (C.R.G.), Winnipeg; Department of Paediatrics (D.L.F.), Holland Bloorview Kids Rehabilitation Hospital, University of Toronto, Canada; Nationwide Children's Hospital (J.R.M.); Ohio State University Wexner Medical Center (W.K., J.T.K.), Columbus; Muscular Dystrophy Association (V.C.), Marlton, NJ; CHU Sainte Justine (M.V.), Montreal, Canada; and Marathon Pharmaceuticals, LLC (J.S.D., J.M.M.), Northbrook, IL.; Kissel JT; From the University of Rochester Medical Center (R.C.G., R.T.M., S.P.), NY; Washington University in St Louis (J.P.M., A.P., J.M.F.), MO; University of Manitoba and Children's Hospital Research Institute of Manitoba (C.R.G.), Winnipeg; Department of Paediatrics (D.L.F.), Holland Bloorview Kids Rehabilitation Hospital, University of Toronto, Canada; Nationwide Children's Hospital (J.R.M.); Ohio State University Wexner Medical Center (W.K., J.T.K.), Columbus; Muscular Dystrophy Association (V.C.), Marlton, NJ; CHU Sainte Justine (M.V.), Montreal, Canada; and Marathon Pharmaceuticals, LLC (J.S.D., J.M.M.), Northbrook, IL.; Cwik V; From the University of Rochester Medical Center (R.C.G., R.T.M., S.P.), NY; Washington University in St Louis (J.P.M., A.P., J.M.F.), MO; University of Manitoba and Children's Hospital Research Institute of Manitoba (C.R.G.), Winnipeg; Department of Paediatrics (D.L.F.), Holland Bloorview Kids Rehabilitation Hospital, University of Toronto, Canada; Nationwide Children's Hospital (J.R.M.); Ohio State University Wexner Medical Center (W.K., J.T.K.), Columbus; Muscular Dystrophy Association (V.C.), Marlton, NJ; CHU Sainte Justine (M.V.), Montreal, Canada; and Marathon Pharmaceuticals, LLC (J.S.D., J.M.M.), Northbrook, IL.; Vanasse M; From the University of Rochester Medical Center (R.C.G., R.T.M., S.P.), NY; Washington University in St Louis (J.P.M., A.P., J.M.F.), MO; University of Manitoba and Children's Hospital Research Institute of Manitoba (C.R.G.), Winnipeg; Department of Paediatrics (D.L.F.), Holland Bloorview Kids Rehabilitation Hospital, University of Toronto, Canada; Nationwide Children's Hospital (J.R.M.); Ohio State University Wexner Medical Center (W.K., J.T.K.), Columbus; Muscular Dystrophy Association (V.C.), Marlton, NJ; CHU Sainte Justine (M.V.), Montreal, Canada; and Marathon Pharmaceuticals, LLC (J.S.D., J.M.M.), Northbrook, IL.; Florence JM; From the University of Rochester Medical Center (R.C.G., R.T.M., S.P.), NY; Washington University in St Louis (J.P.M., A.P., J.M.F.), MO; University of Manitoba and Children's Hospital Research Institute of Manitoba (C.R.G.), Winnipeg; Department of Paediatrics (D.L.F.), Holland Bloorview Kids Rehabilitation Hospital, University of Toronto, Canada; Nationwide Children's Hospital (J.R.M.); Ohio State University Wexner Medical Center (W.K., J.T.K.), Columbus; Muscular Dystrophy Association (V.C.), Marlton, NJ; CHU Sainte Justine (M.V.), Montreal, Canada; and Marathon Pharmaceuticals, LLC (J.S.D., J.M.M.), Northbrook, IL.; Pandya S; From the University of Rochester Medical Center (R.C.G., R.T.M., S.P.), NY; Washington University in St Louis (J.P.M., A.P., J.M.F.), MO; University of Manitoba and Children's Hospital Research Institute of Manitoba (C.R.G.), Winnipeg; Department of Paediatrics (D.L.F.), Holland Bloorview Kids Rehabilitation Hospital, University of Toronto, Canada; Nationwide Children's Hospital (J.R.M.); Ohio State University Wexner Medical Center (W.K., J.T.K.), Columbus; Muscular Dystrophy Association (V.C.), Marlton, NJ; CHU Sainte Justine (M.V.), Montreal, Canada; and Marathon Pharmaceuticals, LLC (J.S.D., J.M.M.), Northbrook, IL.; Dubow JS; From the University of Rochester Medical Center (R.C.G., R.T.M., S.P.), NY; Washington University in St Louis (J.P.M., A.P., J.M.F.), MO; University of Manitoba and Children's Hospital Research Institute of Manitoba (C.R.G.), Winnipeg; Department of Paediatrics (D.L.F.), Holland Bloorview Kids Rehabilitation Hospital, University of Toronto, Canada; Nationwide Children's Hospital (J.R.M.); Ohio State University Wexner Medical Center (W.K., J.T.K.), Columbus; Muscular Dystrophy Association (V.C.), Marlton, NJ; CHU Sainte Justine (M.V.), Montreal, Canada; and Marathon Pharmaceuticals, LLC (J.S.D., J.M.M.), Northbrook, IL.; Meyer JM; From the University of Rochester Medical Center (R.C.G., R.T.M., S.P.), NY; Washington University in St Louis (J.P.M., A.P., J.M.F.), MO; University of Manitoba and Children's Hospital Research Institute of Manitoba (C.R.G.), Winnipeg; Department of Paediatrics (D.L.F.), Holland Bloorview Kids Rehabilitation Hospital, University of Toronto, Canada; Nationwide Children's Hospital (J.R.M.); Ohio State University Wexner Medical Center (W.K., J.T.K.), Columbus; Muscular Dystrophy Association (V.C.), Marlton, NJ; CHU Sainte Justine (M.V.), Montreal, Canada; and Marathon Pharmaceuticals, LLC (J.S.D., J.M.M.), Northbrook, IL.

Publisher: Lippincott Williams & Wilkins Country of Publication: United States NLM ID: 0401060 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1526-632X (Electronic) Linking ISSN: 00283878 NLM ISO Abbreviation: Neurology Subsets: MEDLINE

Connolly AM; Department of Neurology, Washington University School of Medicine, Saint Louis, MO 63110, USA. connollya@wustl.edu; Florence JM; Cradock MM; Malkus EC; Schierbecker JR; Siener CA; Wulf CO; Anand P; Golumbek PT; Zaidman CM; Philip Miller J; Lowes LP; Alfano LN; Viollet-Callendret L; Flanigan KM; Mendell JR; McDonald CM; Goude E; Johnson L; Nicorici A; Karachunski PI; Day JW; Dalton JC; Farber JM; Buser KK; Darras BT; Kang PB; Riley SO; Shriber E; Parad R; Bushby K; Eagle M

Publisher: Pergamon Press Country of Publication: England NLM ID: 9111470 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-2364 (Electronic) Linking ISSN: 09608966 NLM ISO Abbreviation: Neuromuscul Disord Subsets: MEDLINE

Dal Bello-Haas V; School of Rehabilitation Science, McMaster University, Hamilton,Canada.vdalbel@mcmaster.ca.; Florence JM

Publisher: Wiley Country of Publication: England NLM ID: 100909747 Publication Model: Electronic Cited Medium: Internet ISSN: 1469-493X (Electronic) Linking ISSN: 13616137 NLM ISO Abbreviation: Cochrane Database Syst Rev Subsets: MEDLINE

Johnson LB; Physical Therapy Department, University of California Davis, Suite 1100, 4860 Y Street, Sacramento, CA 95817, USA. linda.johnson@ucdmc.ucdavis.edu; Florence JM; Abresch RT

Publisher: Saunders Country of Publication: United States NLM ID: 9102787 Publication Model: Print Cited Medium: Internet ISSN: 1558-1381 (Electronic) Linking ISSN: 10479651 NLM ISO Abbreviation: Phys Med Rehabil Clin N Am Subsets: MEDLINE

Flanigan KM; Center for Gene Therapy, Nationwide Children's Hospital, Columbus, Ohio, USA. kevin.flanigan@nationwidechildrens.org; Dunn DM; von Niederhausern A; Soltanzadeh P; Howard MT; Sampson JB; Swoboda KJ; Bromberg MB; Mendell JR; Taylor LE; Anderson CB; Pestronk A; Florence JM; Connolly AM; Mathews KD; Wong B; Finkel RS; Bonnemann CG; Day JW; McDonald C; Weiss RB

Publisher: Wiley-Liss Country of Publication: United States NLM ID: 9215429 Publication Model: Print Cited Medium: Internet ISSN: 1098-1004 (Electronic) Linking ISSN: 10597794 NLM ISO Abbreviation: Hum Mutat Subsets: MEDLINE

Zaidman CM; Department of Neurology, Washington University School of Medicine, St. Louis, MO 63110, USA. zaidmanc@neuro.wustl.edu; Connolly AM; Malkus EC; Florence JM; Pestronk A

Publisher: Pergamon Press Country of Publication: England NLM ID: 9111470 Publication Model: Print Cited Medium: Internet ISSN: 1873-2364 (Electronic) Linking ISSN: 09608966 NLM ISO Abbreviation: Neuromuscul Disord Subsets: MEDLINE