[1] Southern Medical University,Department of General Surgery, Nanfang Hospital
[2] Fujian Provincial Cancer Hospital,Department of Abdominal Surgery
[3] Fujian Medical University,Department of Gastric Surgery, The Affiliated Union Hospital
[4] The Third Affiliated Hospital of Sun Yat-Sen University,Department of Gastrointestinal Surgery
[5] Nanjing General Hospital of Nanjing Military Command,Research Institute of General Surgery
[6] The First People’s Hospital of Foshan,Department of Gastrointestinal Surgery
[7] Sichuan University,Department of Gastrointestinal Surgery, West China Hospital
[8] General Hospital of PLA,Department of General Surgery
[9] The Second Affiliated Hospital of Nanjing Medical University,Department of General Surgery
[10] Guangdong General Hospital,Department of Gastrointestinal Surgery
[11] Jiaozhou Central Hospital of Qingdao,Department of General Surgery