1. Department of Gastroenterological and Pediatric Surgery; Oita University; Faculty of Medicine; Oita Japan
2. Department of Surgery; Keio University School of Medicine; Tokyo Japan
3. Biostatistics Center; Kurume University; Fukuoka Japan
4. Minimally Invasive Surgery Center; Yotsuya Medical Cube; Tokyo Japan
5. Department of Surgery; Teikyo University School of Medicine; Tokyo Japan
6. Section of HPB Surgery; Washington University in Saint Louis; St. Louis MO USA
7. Department of Surgery; Mayo Clinic College of Medicine; Jacksonville FL USA
8. Lewis Katz School of Medicine at Temple University; Philadelphia PA USA
9. Department of Surgery; Seoul National University Bundang Hospital; Seoul National University College of Medicine; Seoul Korea
10. Division of General Surgery; Lin-Kou Chang Gung Memorial Hospital; Tauyuan Taiwan
11. Department of Surgery; Fujinomiya City General Hospital; Shizuoka Japan
12. Department of Surgery; Konyang University Hospital; Daejeon Korea
13. Department of Surgery; Yonsei University Gangnam Severance Hospital; Seoul Korea
14. Department of Surgery; Show Chwan Memorial Hospital; Changhua Taiwan
15. Department of Hemodialysis and Surgery; Chemotherapy Research Institute; International University of Health and Welfare; Chiba Japan
16. Department of Surgery; Ageo Central General Hospital; Saitama Japan
17. Department of Surgery; Center for Gastroenterology and Liver Disease; Kitakyushu City Yahata Hospital; Fukuoka Japan
18. Department of Gastroenterological Surgery; Yokohama City University Graduate School of Medicine; Kanagawa Japan
19. Department of Surgery, Hospital Italianio; University of Buenos Aires; Buenos Aires Argentina
20. Chair of General Surgery and Minimal Invasive Surgery “Taquini”; University of Buenos Aires; Argentina DAICIM Foundation; Buenos Aires Argentina
21. Department of Surgery; The University of Auckland; Auckland New Zealand
22. Clinical Surgery; The University of Edinburgh; Edinburgh UK
23. Department of Surgery; Academic Medical Center; Amsterdam The Netherlands
24. Hepatobiliary Center; Paul Brousse Hospital; Villejuif France
25. Department of General and HPB Surgery; Loreto Nuovo Hospital; Naples Italy
26. First Department of Surgery; Agia Olga Hospital; Athens Greece
27. Department of Surgery; Rush University Medical Center; Chicago IL USA
28. Surgical Gastroenterology/Hepatopancreatobiliary Unit; University of Cape Town and Groote Schuur Hospital; Cape Town South Africa
29. Department of Surgical Oncology; Lilavati Hospital and Research Centre; Mumbai India
30. Department of Surgical Gastroenterology; Seth G S Medical College and K E M Hospital; Mumbai India
31. Hepatic Surgery Centre; Department of Surgery; Tongji Hospital; Tongi Medical College; Huazhong University of Science and Technology; Wuhan China
32. Surgery Centre; Department of Surgery; Hong Kong Sanatorium and Hospital; Hong Kong Hong Kong
33. Faculty of Medicine; The Chinese University of Hong Kong; Shatin Hong Kong
34. Department of Surgery; The University of Hong Kong; Queen Mary Hospital; Hong Kong Hong Kong
35. Department of Gastroenterology; University of Ulsan College of Medicine; Seoul Korea
36. Department of Surgery; Tokyo Metropolitan Komagome Hospital; Tokyo Japan
37. Department of Surgery; Fujita Health University School of Medicine; Aichi Japan
38. Department of Surgery; Toho University Ohashi Medical Center; Tokyo Japan
39. Department of Surgery I; Kyushu University; Faculty of Medicine; Fukuoka Japan
40. Department of Surgery; Institute of Gastroenterology; Tokyo Women's Medical University; Tokyo Japan
41. Department of Surgery; The Jikei University Kashiwa Hospital; Chiba Japan
42. Department of Surgery; Tohoku Rosai Hospital; Miyagi Japan
43. Department of Surgery; Saitama Medical Center; Jichi Medical University; Saitama Japan
44. Department of Surgery; Jichi Medical University; Tochigi Japan
45. Chiba Tokushukai Hospital; Chiba Japan
46. Oita University; Oita Japan
47. Department of Surgery; JR Sapporo Hospital; Hokkaido Japan
48. Toho University; Tokyo Japan
49. Department of Gastroenterology; Second Teaching Hospital; Fujita Health University; Aichi Japan