[1] Sichuan Univ, Dept Orthopaed, West China Hosp, 37 Guoxue lane, Chengdu 610041, Sichuan, Peoples R China
[2] Sichuan Univ, West China Sch Publ Hlth, Dept Orthopaed, Chengdu, Sichuan, Peoples R China
[3] Sichuan Univ, West China Hosp 4, Dept Orthopaed, Chengdu, Sichuan, Peoples R China
[4] Sichuan Univ, West China Hosp, West China Sch Nursing, Operating Room, Chengdu 610041, Peoples R China
[5] Foshan Hosp Tradit Chinese Med, Foshan, Guangdong, Peoples R China