1. Second Department of Surgery Dokkyo Medical University Tochigi Japan
2. Department of Surgery Seoul National University Hospital Seoul Korea
3. Division of Pathology Fukui Saiseikai Hospital Fukui Japan
4. Department of Pathology and Translational Genomics Samsung Medical CenterSungkyunkwan University School of Medicine Seoul Korea
5. Department of Public Health Dokkyo Medical University Tochigi Japan
6. Department of Pathology Jichi Medical University Tochigi Japan
7. Department of Investigative Pathology Tohoku University Graduate School of Medicine Sendai Japan
8. Department of Pathology Asan Medical Center University of Ulsan College of Medicine Seoul Korea
9. Department of Surgery Seoul National University College of Medicine Seoul Korea
10. Department of Pathology Seoul National University Hospital Seoul National University College of Medicine Seoul Korea
11. Institute of Liver Studies King’s College Hospital & King’s College London London UK
12. Department of General Surgery Graduate School of Medicine Chiba University Chiba Japan
13. Department of Surgery Sungkyunkwan University School of Medicine Seoul Korea
14. Department of Gastroenterological Surgery Yokohama City University Graduate School of Medicine Kanagawa Japan
15. Department of Surgery University of Ulsan College of Medicine Seoul Korea
16. Department of Surgery and Oncology Graduate School of Medical Sciences Kyushu University Fukuoka Japan
17. Department of Surgery Seoul National University College of Medicine Seoul National University Bundang Hospital Seoul Korea
18. Division of Hepato‐Biliary‐Pancreatic and Transplant Surgery Department of Surgery Graduate School of Medicine Kyoto University Kyoto Japan
19. Center for Liver and Pancreatobiliary Cancer Research Institute and Hospital National Cancer Center Goyang Korea
20. Department of Surgery Faculty of Medicine University of Miyazaki Miyazaki Japan
21. Department of Surgery Korea University College of Medicine Seoul Korea
22. Department of Pathology Korea University College of Medicine Seoul Korea
23. Department of Gastroenterological Surgery Kanazawa University Ishikawa Japan
24. Department of Surgery Department of Surgery Keimyung University School of Medicine Daegu Korea
25. Department of Surgery Division of Hepato‐Biliary‐Pancreatic Surgery Kobe University Graduate School of Medicine Kobe Japan
26. Department of Surgery University of Ulsan College of Medicine (Ulsan University Hospital) Seoul Korea
27. Department of Surgery Pusan National University School of Medicine (Pusan National University Hospital) Pusan Korea
28. Department of Gastroenterology Second Teaching Hospital Fujita Health University Nagoya Japan
29. Division of HBP Surgery Department of Surgery Severance Hospital Pancreatobiliary Cancer Center Yonsei Cancer Center Yonsei University College of Medicine Seoul Korea
30. Department of Surgery Tohoku University Graduate School of Medicine Miyagi Japan