Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education/Beijing);
Department of Gastrointestinal Oncology;
Peking University Cancer Hospital & Institute;
Beijing 100142;
China;
Peking University People’s Hospital;
Department of Gastrointestinal Surgery.Beijing 100O44;
China;
Fudan University Zhongshan Hospital;
Department of Pathology;
Shanghai 200032;
China;
Sichuang University Huaxi Hospital;
Department of Gastrointestinal Surgery;
Chengdu 610041;
China;
People’s Liberation Army Cancer Center;
81st Hospital of People’s Liberation Army;
Department of Medical Oncology;
Nanjing 210002;
China;
Fudan University Cancer Hospital;
Department of Gastric Surgery;
Shanghai 200032;
China;
The First Affiliated Hospital;
Sun Yat—sen University;
Departm ent of Gastrointestinal Surgery;
Guangzhou 510080;
China;
Shanxi Provincial Cancer Hospital;
Department of Gastrointestinal Surgery;
Shanxi 030013;
China;
Chinese PLA General Hospita1;
Department of General Surgery;
Beijing 100853;
China;
Ren Ji Hospital;
School of Medicine;
Shanghai Jiao Tong University;
Department of General Surgery;
Shanghai 200127;
China;