[1] Guangxi Med Univ, Affiliated Hosp 1, Dept Spine & Osteopathy Ward, Nanning 53000, Guangxi, Peoples R China
[2] Univ South China, Affiliated Hosp 1, Hengyang Med Sch, Special Sports Medcine Dept Orthopaed, Hengyang 421001, Hunan, Peoples R China
[3] Univ South China, Affiliated Hosp 1, Hengyang Med Sch, Dept Hepatobiliary Surg, 69 ChuanShan Rd, Hengyang 421001, Hunan, Peoples R China
[4] Univ South China, Affiliated Hosp 1, Hengyang Med Sch, Dept Orthoped, 69 Chuanshan Rd, Hengyang 421001, Hunan, Peoples R China