1. Department of Hepato-biliary Pancreatic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China.
2. Department of Urology Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China.
3. Division of Infectious Diseases, State Key Laboratory of Biotherapy, Sichuan University, Chengdu, Sichuan Province, China.