1. China-America Institute of Neuroscience (K.J., C.Z., L.W., W.L., M.J., M.C., D.W., X.J.), Xuanwu Hospital, Capital Medical University, Beijing, China.
2. Department of Neurology (K.J., C.Z., L.W., W.L., M.J., M.C., D.W., J.D., R.M.), Xuanwu Hospital, Capital Medical University, Beijing, China.
3. Center for Evidence-Based Medicine (C.H.), Xuanwu Hospital, Capital Medical University, Beijing, China.
4. Department of Neurosurgery (X.J.), Xuanwu Hospital, Capital Medical University, Beijing, China.