1. Department of Gastroenterological Surgery Nagoya City University Graduate School of Medical Science Nagoya Japan
2. Department of Oncological and Emergency Surgery Policlinico Casilino Rome Italy
3. Department of General Surgery and Liver Transplantation Service San Camillo Forlanini hospital of Rome Rome Italy
4. Department of Surgery and Oncology Graduate School of Medical Sciences Kyushu University Fukuoka Japan
5. Hepato‐Biliary‐Pancreatic Surgery Division Department of Surgery Graduate School of Medicine The University of Tokyo Tokyo Japan
6. Department of Surgery Instituto Fondazione Poliambulanza Brescia Italy
7. Hepato‐Biliary and Pancreas Surgery – Miami Cancer Institute Miami FL USA
8. Hepatobiliary Center Paul Brousse Hospital Paris France
9. Department of Hepatobiliary and Pancreatic Surgery National Cancer Center Hospital East Chiba Japan
10. Seoul National University Bundang Hospital Seoul National University College of Medicine Seoul Korea
11. Department of Surgery Fujita Health University Aichi Japan
12. HPB and Liver Transplant Unit Clínica Universidad de Navarra Pamplona Spain
13. Department of Surgery Institute of Gastroenterology Tokyo Women's Medical University Tokyo Japan
14. Center for Advanced Treatment of Hepatobiliary and Pancreatic Diseases Ageo Central General Hospital Saitama Japan