1. Zhongshan Hospital Fudan University Shanghai China
2. Herbin Medical University Heilongjiang China
3. Fujian Medical University Union Hospital Fuzhou China
4. The First Hospital of Jilin University Changchun China
5. The Affiliated Cancer Hospital of Zhengzhou University Henan Cancer Hospital Zhengzhou China
6. The Affiliated Hospital of Qingdao University Qingdao China
7. Sir Run Run Shaw Hospital Hangzhou China
8. Peking Union Medical College Hospital Beijing China
9. China P.L.A. General Hospital (301 Hospital) Beijing China
10. Jilin Cancer Hospital Changchun China
11. Liaoning Cancer Hospital and Institute Shenyang China
12. Zhejiang Cancer Hospital Hangzhou China
13. Tianjin Medical University Cancer Institute and Hospital Tianjin China
14. The First People's Hospital of Changzhou Changzhou China
15. Medical Oncology Cancer Center Sun Yat‐Sen University Guangzhou China
16. Fudan University Shanghai Cancer Center Shanghai China
17. Eastern Theater General Hospital QinHuai District Medical Area China
18. Hunan Cancer Hospital Changsha Shi China
19. Jiangsu Cancer Hospital Nanjing China
20. National Cancer Center Hospital East Kashiwa Japan
21. Bristol Myers Squibb Princeton New Jersey USA
22. Department of Gastrointestinal Oncology Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing) Peking University Cancer Hospital and Institute Beijing China