[1] Beijing Univ Chinese Med, Dept Orthopaed Surg, Affiliated Hosp 3, 51 Xiaoguan St, Beijing 100029, Peoples R China
[2] Guangzhou Univ Chinese Med, Guangdong Prov Hosp Tradit Chinese Med, Affiliated Hosp 2, Dept Orthopaed Surg, Guangzhou 510120, Guangdong, Peoples R China
[3] Beijing Longfu Hosp, Dept Orthopaed Surg, Beijing 100010, Peoples R China
[4] Guangdong Prov Engn Technol Res Inst Tradit Chines, Guangdong Tradit Chinese Med Hosp 2, Guangzhou 510095, Guangdong, Peoples R China