[1] Zhejiang Univ, Affiliated Hosp, Sch Med 4, Dept Orthoped, Yiwu 322000, Peoples R China
[2] Zhejiang Univ, Int Inst Med, Int Sch Med, Yiwu 322000, Peoples R China
[3] Zhejiang Univ, Affiliated Hosp 2, Sch Med, Dept Orthoped Surg, Hangzhou 310009, Peoples R China
[4] Nanjing Med Univ, Affiliated Hosp 1, Dept Orthoped, Nanjing 210029, Peoples R China
[5] Zhejiang Univ, Affiliated Hosp 2, Dept Nursing, Sch Med, Hangzhou 310009, Peoples R China