[1] Guangzhou Med Univ, Affiliated Hosp 2, Dept Neurosurg, Guangzhou 510260, Guangdong, Peoples R China
[2] Southern Med Univ Guangzhou, Clin Med Coll, Jinling Hosp, Dept Neurosurg, Nanjing 210002, Jiangsu, Peoples R China
[3] Nanjing Univ, Sch Med, Jinling Hosp, Dept Neurosurg, Nanjing 210002, Jiangsu, Peoples R China
[4] Wannan Med Coll, Affiliated Hosp 1, Dept Neurosurg, Wuhu 241001, Anhui, Peoples R China
[5] Zhongdu Hosp, Dept Neurosurg, Bengbu 233000, Anhui, Peoples R China