1. Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China
2. Institute of Gastric Cancer, State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
3. Department of Gastrointestinal Surgery, Guizhou Provincial People's Hospital, Guiyang, China
4. Faculty of Medicine, West China Medical School, Sichuan University, Chengdu, China
5. Department of Medical Oncology, Cancer Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
6. Institute of Digestive Surgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China