[1] Cent S Univ, Xiangya Hosp, Dept Gen Surg, 87 Xiang Ya Rd, Changsha 410008, Hunan, Peoples R China
[2] Hunan Prov Tumor Hosp, Dept Surg, Changsha 410006, Hunan, Peoples R China
[3] Cent S Univ, Xiangya Hosp, Inst Med Sci, Changsha 410008, Hunan, Peoples R China
[4] Cent S Univ, Xiangya Hosp, Dept Oncol, Changsha 410008, Hunan, Peoples R China
[5] Cent S Univ, Xiangya Hosp, Dept Pathol, Changsha 410008, Hunan, Peoples R China