1. Department of Visceral Surgery, Lausanne University Hospital CHUV, University of Lausanne (UNIL) , Lausanne , Switzerland
2. Department of Gastroenterology and Hepatology, Erasmus Medical Centre , Rotterdam , the Netherlands
3. Department of Gastroenterology and Hepatology, Ikazia Hospital , Rotterdam , the Netherlands
4. Department of Hepatobiliary and General Surgery, Humanitas University, Humanitas Clinical and Research Centre, IRCCS , Rozzano, Milan , Italy
5. Division of Hepatopancreatobiliary Surgery, Department of Surgery, Severance Hospital, Yonsei University College of Medicine , Seoul , Korea
6. Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, National Cancer Centre Singapore and Duke-National University of Singapore Medical School , Singapore , Singapore
7. Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, University of Tokyo , Tokyo , Japan
8. Department of Surgical Oncology, University of Texas MD Anderson Cancer Center , Houston, Texas , USA
9. Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Carolinas Medical Centre , Charlotte, North Carolina , USA