1. From the Department of Epidemiology, Tianjin Neurological Institute, Tianjin, China (J.W., L.B., M.S., J.T., X.N.); Department of Neurology, Tianjin Medical University General Hospital, Tianjin, China (J.W., L.B., M.S., L.Y., J.T., X.N.); Department of Neurology, Tianjin Huanhu Hospital, Tianjin, China (Z.A., W.Z.); Department of Neurology, Tianjin Haibin People’s Hospital, Tianjin, China (B.L., H.G.); and Department of Neurology, Wuhu No. 2 People’s Hospital, Wuhu, Anhui Province, China (C.Z.).