1. Department of General Surgery, NHS Lothian, UK
2. Hepatopancreatobiliary and Transplant Unit, Freeman Hospital, Newcastle upon Tyne, UK
3. Institute of Liver Studies, King’s Healthcare Partners, King’s College Hospital NHS Foundation Trust, Denmark Hill, London SE5 9RS, UK
4. Cancer Institute Hospital of Japanese Foundation for Cancer Research, Hepato-Biliary-Pancreatic Medicine Department, Tokyo, Japan
5. Cambridge Hepatobiliary and Pancreatic Surgery Unit, Addenbrooke’s Hospital, Cambridge, UK
6. Hepatobiliary and Pancreatic Surgery Unit, The Royal Free Hospital, London, UK
7. Hepatobiliary and Pancreatic Surgery Unit, University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital Birmingham, UK
8. Hepatobiliary and Pancreatic Surgery Unit, University Hospital Southampton, Southampton, UK
9. Hepatobiliary and Pancreatic Surgery Unit, Leeds Teaching Hospitals NHS Trust, Leeds, UK
10. Department of Hepatopancreatobiliary Surgery, East Lancashire Teaching Hospitals NHS Trust, UK
11. Oxford Hepato-Pancreato-Biliary (HPB) surgical unit, Oxford University Hospitals NHS Foundation Trust, UK
12. Nottingham Hepato-Pancreatico-Biliary (HPB) Service, Nottingham University Hospitals NHS Foundation Trust, UK
13. Department of General Surgery, University Hospitals Bristol & Weston NHS Foundation trust, UK
14. Gastrointestinal Unit, The Royal Marsden NHS Foundation Trust, London, UK
15. Department of Clinical Surgery, University of Edinburgh, UK
16. Department of Gastrointestinal Surgery, HPB unit, Stavanger University Hospital, Norway
17. Department of Quality and Health Technology, University of Stavanger, Stavanger, Norway
18. Hepatopancreatobiliary Unit, University Hospitals Plymouth NHS Trust, Plymouth, UK
19. Hepato-pancreatico-biliary/Upper Gastrointestinal Unit, North Shore Hospital, Auckland, NZ
20. San Raffaele Scientific Institute, Vita Salute San Raffaele University, Milan, Italy; Digestive and Liver Disease Unit, S. Andrea Hospital, Rome, Italy
21. Department of Visceral, Transplant and Thoracic Surgery, Innsbruck Medical University, Austria
22. Leicester Hepatopancreatobiliary Unit, University Hospitals of Leicester NHS Trust, UK
23. Department of General and Vascular Surgery, Christchurch Hospital, New Zealand
24. Wolfson Wohl Cancer Research Centre, University of Glasgow, UK
25. New South Wales Health Pathology, Dept of Anatomical Pathology, Royal North Shore Hospital, Sydney, NSW, Australia
26. Royal North Shore Hospital, Sydney, NSW, Australia
27. Sydney Medical School, University of Sydney, Sydney NSW Australia
28. Department of Clinical Medicine, University of Bergen, Bergen, Norway
29. Population Health Sciences Institute, Newcastle University, Newcastle Upon Tyne, UK