1. Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine; Guangzhou 510060 China
2. Department of Gastric Surgery; Sun Yat-sen University Cancer Center; Guangzhou China
3. Department of General Surgery; Union Hospital Tongji Medical College Huazhong University of Science and Technology; Wuhan China
4. Department of General Surgery; Guangdong General Hospital; Guangzhou China
5. Department of General Surgery; Southern Medical University Nanfang Hospital; Guangzhou China