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...