[Li, Xiaorong; Yu, Bowen; Wu, Hao; Wu, Runliu; Bai, Yang; Xie, Canbin; Zhang, Yi; Lin, Changwei] Cent South Univ, XiangYa Hosp 3, Dept Gastrointestinal Surg, Changsha 410013, Hunan, Peoples R China.
[Li, Liang] Univ South China, Sch Med, Five Year Program Clin Med, Hengyang 421001, Hunan, Peoples R China.
[Huang, Lihua] Cent South Univ, XiangYa Hosp 3, Ctr Expt Med, Changsha 410013, Hunan, Peoples R China.
[Yan, Yichao] Peking Univ Int Hosp, Dept Gastroenterol Surg, Beijing 102206, Peoples R China.
[Lin, Changwei] Cent South Univ, Sch Life Sci, Changsha 410078, Hunan, Peoples R China.