[1] Sichuan Univ, Chengdu Shangjin Nanfu Hosp, Dept Gen Surg, Chengdu, Sichuan, Peoples R China
[2] Sichuan Univ, Chengdu Shangjin Nanfu Hosp, Dept Operating Room, Chengdu, Sichuan, Peoples R China
[3] Sichuan Univ, West China Hosp, Dept Pancreat Surg, 37 Guoxue Alley, Chengdu 610041, Sichuan, Peoples R China