1. Department of Surgery, University Hospital Southampton NHS Foundation Trust, Southampton, UK
2. Department of Surgery, Morriston Hospital, Swansea, UK
3. Department of Surgery, University of Manchester and Salford University Hospital NHS Foundation Trust, Manchester, UK
4. Department of Surgery, Plymouth Hospitals NHS Trust, Plymouth, UK
5. Department of Surgery, Royal Stoke University Hospital, Stoke-on-Trent, UK
6. Hepatopancreatobiliary and Liver Transplant Unit, Royal Free London, London, UK
7. Department of Surgery, Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
8. Department of Surgery, Nottingham University Hospitals NHS Trust, Nottingham, UK
9. Department of Surgery, University Hospitals Coventry and Warwickshire NHS Trust, Coventry, UK
10. Department of Surgery, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
11. Department of Surgery, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK