1. Department of Medical Oncology Fudan University Shanghai Cancer Center Shanghai PR China
2. Department of Oncology, Shanghai Medical College Fudan University Dongan Road Shanghai PR China
3. Department of Gastric Surgery Sun Yat‐sen University Cancer Center Guangzhou PR China
4. Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South China Collaborative Innovation Center for Cancer Medicine Guangzhou PR China
5. Department of Gastric Surgery Fudan University Shanghai Cancer Center Shanghai PR China