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