1. Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
2. Laboratory of Gastric Cancer, State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
3. West China School of Medicine, Sichuan University, Chengdu 610041, China
4. Institution of Digestive Surgery, State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China