[1] Guangdong Second Prov Gen Hosp, Dept Neurol, 466 Middle Xingang Rd, Guangzhou 510317, Guangdong, Peoples R China
[2] Guangdong Second Prov Gen Hosp, Ctr Cerebrovasc Dis, Guangzhou, Guangdong, Peoples R China
[3] Southern Med Univ, Affiliated Nanyue Hosp, Dept Neurol, Guangzhou, Guangdong, Peoples R China
[4] Sun Yat Sen Univ, Sch Nursing, Guangzhou, Guangdong, Peoples R China
[5] Beijing Armed Police Corps Hosp, Dept Neurol, Beijing, Peoples R China