1. From the Department of Neurology (W.Z., R.C., S.S., C.W., L.W., J.D., H.S., Y.W.) and Department of Neurosurgery (C.L., J.C., H.Z., F.L., X.J.), Xuanwu Hospital, Capital Medical University, Beijing, China; Department of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA (D.L.); and Department of Neurology, Medical University of South Carolina, Charleston (W.F.).