1. From the Department of Biostatistics, UAB School of Public Health, Birmingham, AL (G.H.); Department of Medicine, University of Vermont, Burlington, VT (M.C.); Department of Epidemiology, UAB School of Public Health, Birmingham, AL (V.J.H.); Department of Neurology, University of Cincinnati, Cincinnati, OH (B.M.K., D.O.K., D.W.); National Institute of Neurological Disorders and Stroke, Bethesda, MD (C.S.M.); and Department of Neurology, Georgia Health Sciences University, Augusta, GA (J.S.).