[1] Zhengzhou Univ, Affiliated Hosp 3, Dept Gynecol Tumor Ward, Zhengzhou, Peoples R China
[2] Zhengzhou Univ, Affiliated Hosp 2, Dept Intens Care Unit, Zhengzhou, Peoples R China
[3] Zhengzhou Univ, Affiliated Hosp 1, Dept Orthopaed, Zhengzhou, Peoples R China
[4] Ganzhou Peoples Hosp, Dept Orthopaed, Ganzhou, Peoples R China
[5] Hubei Univ Arts & Sci, Xiangyang Cent Hosp, Affiliated Hosp, Dept Operating Room, Wuhan, Peoples R China
[6] Tianjin Med Univ, Dept Clin Coll Neurol, Neurosurg & Neurorehabil, Tianjin, Peoples R China
[7] China Acad Chinese Med Sci, Wangjing Hosp, Dept Spine Surg, Beijing, Peoples R China
[8] Charite Univ Med Berlin, Ctr Musculoskeletal Surg CMSC, Berlin, Germany
[9] Free Univ Berlin, Berlin, Germany
[10] Humboldt Univ, Berlin Inst Hlth, Berlin, Germany