1. Department of Gastroenterological Surgery Nagoya City University Graduate School of Medical Sciences Nagoya Japan
2. Department of Surgery Fukuyama City Hospital Hiroshima Japan
3. Department of Surgery Keio University School of Medicine Tokyo Japan
4. Department of Hepatobiliary and Pancreatic Surgery National Cancer Center Hospital East Chiba Japan
5. Department of Surgery Institute of Gastroenterology Tokyo Women's Medical University Tokyo Japan
6. Department of Surgery Istituto Ospedaliero Fondazione Poliambulanza Brescia Italy
7. Department of Gastroenterological and General Surgery School of Medicine Showa University Tokyo Japan
8. Hepato‐Biliary and Pancreas Surgery Miami Cancer Institute Miami Florida USA
9. Department of General Surgery and Liver Transplantation Service San Camillo Forlanini Hospital of Rome Rome Italy
10. Division of Liver Transplantation, Hepatobiliary & Pancreatic Surgery Department of Surgery The University of Hong Kong Hong Kong SAR China
11. Hepato‐Pancreato‐Biliary Surgery Unit Department of Surgery National Cancer Institute Bangkok Thailand
12. Department of Surgery Far Eastern Memorial Hospital New Taipei City Taiwan
13. Department of Hepatobiliary Surgery Sun Yat‐Sen Memorial Hospital Sun Yat‐Sen University Guangzhou China
14. Hepatobiliary Center Paul Brousse Hospital Paris France
15. Department of Surgery The University of Hong Kong Hong Kong China
16. Unit of Hepatobiliary Surgery and Liver Transplantation University Hospital Reina Sofia, IMIBIC Cordoba Spain
17. Department of Digestive and Oncologic Surgery Institut Mutualiste Montsouris Université Paris‐Descartes Paris France
18. Department of Surgery University of Pittsburgh Medical Center Pittsburgh Pennsylvania USA
19. Seoul National University Bundang Hospital Seoul National University College of Medicine Seoul Korea
20. Hepato‐Biliary‐Pancreatic Surgery Division Department of Surgery Graduate School of Medicine The University of Tokyo Tokyo Japan
21. Department of Surgery Graduate School of Medicine Kyoto University Kyoto Japan
22. Department of Hepato‐Biliary‐Pancreatic and Gastrointestinal Surgery International University of Health and Welfare School of Medicine Chiba Japan
23. Department of Gastroenterological and Pediatric Surgery Faculty of Medicine Oita University Oita Japan
24. Division of General and Gastroenterological Surgery Department of Surgery Faculty of Medicine Toho University Tokyo Japan
25. Department of Surgery Fujita Health University Aichi Japan
26. Center for Liver and Pancreatobiliary Cancer National Cancer Center Gyeonggi‐do Korea
27. Faculty of Hepato‐pancreato‐biliary Surgery Institute of Hepatobiliary Surgery of Chinese PLA Key Laboratory of Digital Hepatobiliary Surgery of Chinese PLA Chinese PLA General Hospital Beijing China
28. General Surgery Department Hospital Universitari de Girona Dr Josep Trueta Girona Spain
29. HPB and Liver Transplant Unit Clínica Universidad de Navarra Pamplona Spain
30. Department of Hepato‐Biliary‐Pancreatic Surgery Kyorin University Hospital Tokyo Japan
31. Department of Surgery and Science Graduate School of Medical Sciences Kyushu University Fukuoka Japan
32. Department of Hepatobiliary and Pancreatic Surgery Graduate School of Medicine Tokyo Medical and Dental University Tokyo Japan
33. Department of Surgery and Transplantation Virgen de la Arrixaca University Hospital (IMIB‐Virgen de la Arrixaca) Murcia Spain
34. Institute of Image‐Guided Surgery of Strasbourg Strasbourg France
35. Hepatobiliary Center Paul Brousse Hospital Villejuif France
36. Department of Surgery Fukuoka University Chikushi Hospital Chikushino Japan
37. Department of Surgery and Oncology Graduate School of Medical Sciences Kyushu University Fukuoka Japan
38. General and Emergency Surgery Unit GB Grassi Hospital Rome Italy
39. Division of Hepato‐Biliary‐Pancreatic Surgery Department of Surgery Kobe University Graduate School of Medicine Kobe Japan
40. Department of Gastrointestinal and Pediatric Surgery Tokyo Medical University Tokyo Japan
41. Department of General Surgery Chiba University Graduate School of Medicine Chiba Japan
42. Department of Hepatobiliary and Pancreatic Surgery National Cancer Center Hospital Tokyo Japan
43. Department of Pediatric Surgery and Transplantation Kumamoto University Graduate School of Medical Sciences Kumamoto Japan
44. Department of Surgery National Center for Global Health and Medicine Tokyo Japan
45. First Department of Surgery Kagoshima University School of Medicine Kagoshima Japan
46. Center for Advanced Treatment of Hepatobiliary and Pancreatic Diseases Ageo Central General Hospital Saitama Japan