1. Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
2. Laboratory of Gastric Cancer, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
3. Laboratory of Digestive Surgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China