1. From the Departments of Neurology (W.-H.X., C.D., T.R., R.L.S.) and Public Health Sciences (T.R., R.L.S.), Miller School of Medicine, University of Miami, Miami, FL; Departments of Neurology and Epidemiology, Columbia University, New York, NY (M.S.V.E.); and Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China (W.-H.X.).