1. Department of Gastrointestinal and Pediatric Surgery; Tokyo Medical University; Tokyo Japan
2. Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery; Nippon Medical School; Tokyo Japan
3. Department of Surgery; Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital; Tokyo Japan
4. Department of Surgery and Oncology; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
5. Department of Hepatobiliary and Pancreatic Surgery; Graduate School of Medicine; Tokyo Medical and Dental University; Tokyo Japan
6. Division of Hepatobiliary-Pancreatic Surgery and Transplantation; Department of Surgery; Kyoto University; Kyoto Japan
7. Department of Surgery; The Jikei University School of Medicine; Tokyo Japan
8. Department of Surgery; National Hospital Nagasaki Medical Center; Nagasaki Japan
9. Second Department of Surgery; School of Medicine; Wakayama Medical University; Wakayama Japan
10. Department of Surgery; Tohoku University; Sendai Japan
11. Department of Gastrointestinal and Pancreatic Surgery; Zhejiang Provincial People's Hospital; People's Hospital of Hangzhou Medical College; Zhejiang China
12. Department of Hepatobiliary and Pancreatic Surgery; Yonsei University College of Medicine; Seoul South Korea
13. Department of Gastrointestinal and Hepato-Pancreato-Biliary Surgical Oncology; Tata Memorial Hospital; Mumbai India
14. Department of Surgical Oncology; The University of Texas MD Anderson Cancer Center; Houston TX USA
15. Department of Surgery; Seoul National University Bundang Hospital; Seoul National University College of Medicine; Seoul South Korea
16. Department of Surgery; Pamela Youde Nethersole Eastern Hospital; Chai Wan Hong Kong SAR China
17. Division of Gastrointestinal Surgery and Minimal Access Surgery; GEM Hospital and Research Centre; Coimbatore India
18. Division of Surgical Oncology; Department of Surgery; Emory University School of Medicine; Atlanta GA USA
19. Department of General Surgery; Mayo Clinic; xxx FL USA
20. Department of Surgery; Ageo Central General Hospital; Ageo Japan
21. Department of Surgery; Teikyo University School of Medicine; Tokyo Japan
22. Department of Surgery; Institute of Gastroenterology; Tokyo Women's Medical University; Tokyo Japan