N Engl J Med 2020 09;383(10):919-930
From the Sean M. Healey and AMG Center for ALS and the Neurological Clinical Research Institute, Massachusetts General Hospital, Harvard Medical School (S.P., J.D.B., S.B., M.C., D.D., M.M., J.O., L.P., A.V.S., E.T., P.V., J. Walker, H.Y., R.E.T., M.E.C.), the Biostatistics Center, Massachusetts General Hospital, Harvard Medical School (E.A.M., J. Chan, D.S.), and Spaulding Rehabilitation Hospital, Harvard Medical School (S.P.), Boston, the University of Massachusetts Memorial Medical Center, Worcester (M.A.O.), and Amylyx Pharmaceuticals (J. Cohen, J. Klee, K.L., P.D.Y.) and Harvard University (W.G.), Cambridge - all in Massachusetts; Pentara, Millcreek, UT (S.H., S.P.D., N.E., K.H.); Swedish Neuroscience Institute, Seattle (M.A.E.); Hennepin Healthcare, Minneapolis (S.M.); the Department of Neurology, Oregon Health and Science University, Portland (C.K.); the Department of Neurology, Wake Forest School of Medicine, Winston-Salem, NC (J.B.C.); the Department of Neurology, Ohio State University College of Medicine, Columbus (A.Q.); the Department of Neurology, University of Florida College of Medicine, Gainesville (J. Wymer); the Department of Neurology, University of Michigan, Ann Arbor (S.A.G.); Texas Neurology, Dallas (D.H.); the Department of Neurology, Lewis Katz School of Medicine, Temple University (T.H.-P.), and the Department of Neurology, University of Pennsylvania Perelman School of Medicine (C.Q.) - both in Philadelphia; Glenn Biggs Institute for Alzheimer's and Neurodegenerative Disease, University of Texas Health Science Center at San Antonio, San Antonio (C.E.J.); the Brain Science Institute and Department of Neurology, Johns Hopkins University, Baltimore (J.D.R.); the Department of Neurology, University of Kentucky College of Medicine, Lexington (E.J.K.); California Pacific Medical Center and Forbes Norris MDA-ALS Research and Treatment Center, San Francisco (J. Katz, L.J.); Barrow Neurological Institute, Phoenix, AZ (S.L., M.H., G.K., R.R., J.M.S.); the Department of Neurology, Washington University School of Medicine in St. Louis, St. Louis (T.M.M.); the Department of Neurology, Mount Sinai Beth Israel, Icahn School of Medicine at Mount Sinai, New York (S.N.S.); the Department of Neurology, University of South Florida Morsani College of Medicine, Tampa (T.H.V.); the Departments of Neurology and Pathology, Emory University School of Medicine, Atlanta (C.N.F., J.D.G.); Ochsner Health System, New Orleans (K.M.J.); the Department of Neurology, University of Iowa Carver College of Medicine, Iowa City (A.S.); the Department of Neurology, University of California, Irvine, School of Medicine, Irvine (N.A.G.); Neurology Associates, Lincoln, NB (G.L.P.); independent consultant, Nobleboro, ME (P.L.A.); and Statistics Collaborative, Washington, DC (J. Wittes).