1 From the Department of Neurology and Neurological Sciences (K.A.K.), Stanford University, Palo Alto, CA; Department of Neurology (M.B.), Leonard M. Miller School of Medicine, University of Miami, FL; The ALS Association (A.B., J.R.), Washington, DC; Cheyenne Regional Medical Group (T.C.), WY; Department of Neurology (R.R.D.), UT Southwestern Medical Center, Dallas, TX; I AM ALS (P.G., N.S.), Washington, DC; Crestwood ALS Care Clinic (S.K.), Huntsville, AL; Sean M. Healey & AMG Center for ALS (D.S.), Massachusetts General Hospital, Boston; Department of Neurology (K.S.), Warren Alpert Medical School of Brown University, Providence, RI; Mayo Clinic (J.S.), Rochester, MN; Academy of Nutrition and Dietetics (N.G.W.), Chicago, IL; American Academy of Neurology (A.B., S.R.W.), Minneapolis, MN; and Department of Neurology (B.R.B.), Carolinas Medical Center, University of North Carolina School of Medicine, Charlotte.