[1] Capital Med Univ, Inst Cerebrovasc Dis Res, Dept Neurol, Xuanwu Hosp, 45 Changchun St, Beijing 100053, Peoples R China
[2] Peking Union Med Coll, 9 Dongdansantiao St, Beijing 100730, Peoples R China
[3] Beijing Inst Brain Disorders, 10 Xitoutiao, Beijing, Peoples R China
[4] Capital Med Univ, Natl Ctr Neurol Disorders, China Int Neurosci Inst, Dept Neurosurg,Xuanwu Hosp, 45 Changchun St, Beijing 100053, Peoples R China