Section of Gastric Surgery,Senior Department of General Surgery,The First Medical Center,Chinese PLA General Hospital,Beijing 100853,China

Section of Abdominal Trauma Surgery,Senior Department of General Surgery,The First Medical Center,Chinese PLA General Hospital,Beijing 100853,China

Institute of General Surgery,The First Medical Center,Chinese PLA General Hospital,Beijing 100853,China

Department of Gastrointestinal Surgery,Shandong Provincial Hospital Affiliated to Shandong First Medical University,Jinan 250021,China

Department of General Surgery,Fudan University Zhongshan Hospital,Shanghai 200032,China

Department of General Surgery,Fujian Medical University Union Hospital,Fuzhou 350001,China

Department of General Surgery,Nanfang Hospital Affiliated to Southern Medical University,Guangzhou 510515,China

Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education),Gastrointestinal Cancer Center,Peking University Cancer Hospital & Institute,Beijing 100142,China

Department of Gastric Cancer Surgery,Tianjin Medical University Cancer Institute and Hospital,Tianjin 300060,China

Department of General Surgery,Ruijin Hospital,Shanghai Jiao Tong University School of Medicine,Shanghai 200025,China

Institute of Population Medicine and School of Public Health,Fujian Medical University,Fuzhou 350122,China

Department of Gastric Surgery,Fudan University Shanghai Cancer Center,Shanghai 200032,China

Department of General Surgery,Jiangsu Province Hospital,Nanjing Medical University,Nanjing 210029,China

Department of Pancreatic and Gastric Surgery,National Cancer Center,National Clinical Research Center for Cancer,Cancer Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing 100029,China