[1] Capital Med Univ, Beijing Tiantan Hosp, China Natl Clin Res Ctr Neurol Dis, Beijing, Peoples R China
[2] Tulane Univ, Clin Neurosci Res Ctr, Sch Med, New Orleans, LA USA
[3] Tianjin Med Univ, Tianjin Neurol Inst, Gen Hosp, Tianjin, Peoples R China