1. Department of Hepatobiliary and Pancreatic Surgery National Cancer Center Hospital East Chiba Japan
2. Hepatobiliary Center Paul Brousse Hospital Paris France
3. Department of Surgery University of Pittsburgh Medical Center Pittsburgh Pennsylvania USA
4. Department of Surgery Instituto Ospedaliero Fondazione Poliambulanza Brescia Italy
5. Department of General Surgery and Liver Transplantation Service San Camillo Forlanini Hospital of Rome Rome Italy
6. Unit of Hepatobiliary Surgery and Liver Transplantation University Hospital Reina Sofia IMIBIC Cordoba Spain
7. Department of Surgery Keio University School of Medicine Tokyo Japan
8. Department of Gastroenterological and General Surgery School of Medicine Showa University Tokyo Japan
9. Hepato‐Biliary and Pancreas Surgery Miami Cancer Institute Miami Florida USA
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. Department of Surgery The University of Hong Kong Hong Kong China
15. Department of Digestive and Oncologic Surgery Institut Mutualiste Montsouris Université Paris‐Descartes Paris France
16. Seoul National University Bundang Hospital Seoul National University College of Medicine Seoul Korea
17. Hepato‐Biliary‐Pancreatic Surgery Division Department of Surgery Graduate School of Medicine The University of Tokyo Tokyo Japan
18. Department of Surgery Graduate School of Medicine, Kyoto University Kyoto Japan
19. Department of Surgery Institute of Gastroenterology Tokyo Women's Medical University Tokyo Japan
20. Department of Hepato‐Biliary‐Pancreatic and Gastrointestinal Surgery International University of Health and Welfare School of Medicine Chiba Japan
21. Department of Gastroenterological and Pediatric Surgery Oita University Faculty of Medicine Oita Japan
22. Division of General and Gastroenterological Surgery Department of Surgery Toho University Faculty of Medicine Tokyo Japan
23. Department of Surgery Fujita Health University Aichi Japan
24. Center for Liver and Pancreatobiliary Cancer National Cancer Center Gyeonggi‐do Korea
25. 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
26. General Surgery Department Hospital Universitari de Girona Dr Josep Trueta Girona Spain
27. Department of Gastroenterological Surgery Nagoya City University Graduate School of Medical Science Nagoya Japan
28. Department of Surgery Fukuyama City Hospital Hiroshima Japan
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. Department of Surgery Fukuoka University Chikushi Hospital Chikushino Japan
36. Department of Surgery and Oncology Graduate School of Medical Sciences Kyushu University Fukuoka Japan
37. General and Emergency Surgery Unit GB Grassi Hospital Rome Italy
38. Division of Hepato‐Biliary‐Pancreatic Surgery Department of Surgery Kobe University Graduate School of Medicine Kobe Japan
39. Department of Gastrointestinal and Pediatric Surgery Tokyo Medical University Tokyo Japan
40. Department of General Surgery Graduate School of Medicine Chiba University Chiba Japan
41. Department of Pediatric Surgery and Transplantation Kumamoto University Graduate School of Medical Sciences Kumamoto Japan
42. Department of Surgery National Center for Global Health and Medicine Tokyo Japan
43. Department of Hepatobiliary and Pancreatic Surgery National Cancer Center Hospital Tokyo Japan
44. First Department of Surgery Kagoshima University School of Medicine Kagoshima Japan
45. Center for Advanced Treatment of Hepatobiliary and Pancreatic Diseases Ageo Central General Hospital Saitama Japan