[1] Southern Med Univ, Shenzhen Hosp, Dept Neurol, 1333 Xinhu Rd, Shenzhen 518000, Guangdong, Peoples R China
[2] Southern Med Univ, Sch Foreign Studies, Guangzhou 510515, Guangdong, Peoples R China
[3] Southern Med Univ, Shenzhen Hosp, Nursing Dept, Shenzhen 518000, Guangdong, Peoples R China
[4] Shenzhen Sami Int Med Ctr, Out Patient Dept, Shenzhen 518118, Guangdong, Peoples R China
[5] Shenzhen Qianhai Free Trade Zone Hosp, Out Patient Dept, Shenzhen 518038, Guangdong, Peoples R China
[6] Shenzhen Univ, Shenzhen Peoples Hosp 2, Affiliated Hosp 1, Shenzhen 518037, Guangdong, Peoples R China