[Tian, Qingquan] Xiangxi Tujia & Miao Autonomous Prefecture Hosp, Dept Gen Surg, 8 Jiankang Rd, Jishou, Hunan, Peoples R China.
[Wang, SL; Liu, Ganglei; Zhou, Jingyu; Wang, Shalong; Zheng, Yanwen; Zhang, Zequn; Ren, Feng] Cent South Univ, Xiangya Hosp 2, Dept Gen Surg, 139 Renmin Middle Rd, Changsha, Hunan, Peoples R China.
[Zou, Bin] Univ South China, Changsha Cent Hosp, Dept Gen Surg, 161 Shaoshan Middle Rd, Changsha, Hunan, Peoples R China.
[Wang, Qiyuan] Cent South Univ, Xiangya Hosp 2, Dept Emergency Med, 139 Renmin Middle Rd, Changsha, Hunan, Peoples R China.