1. Department of General Surgery, Ruijin Hospital Shanghai Jiao Tong University School of Medicine Shanghai China
2. Shanghai Minimally Invasive Surgery Center, Ruijin Hospital Shanghai Jiao Tong University School of Medicine Shanghai China
3. Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine Shanghai Jiao Tong University Shanghai China
4. Department of General Surgery, Shanghai General Hospital Shanghai Jiao Tong University School of Medicine Shanghai China
5. Hongqiao International Institute of Medicine, Shanghai Tongren Hospital and Clinical Research Institute Shanghai Jiao Tong University School of Medicine Shanghai China
6. Clinical Research Institute Shanghai Jiao Tong University School of Medicine Shanghai China
7. Department of Surgery, Section for Surgical Research (Prof Uranues) Medical University of Graz Auenbruggerplatz Graz Austria