1. From the Department of Neurology (E.M.C., J.L.S., B.G.V.), David Geffen School of Medicine, University of California, and Department of Neurology (E.M.C., B.G.V.), VA Greater Los Angeles Healthcare System, Los Angeles; Department of Medicine (W.E.C., J.J.G., H.H.L., S.L.E.), David Geffen School of Medicine, University of California, Los Angeles; Department of Neurology (A.T.), Rancho Los Amigos National Rehabilitation Center, Los Angeles; Department of Neurology (A.T., N.S.), University of Southern...