1. Hepatopancreatobiliary and Liver Transplant Unit, Queen Elizabeth Hospital, Birmingham, UK
2. Department of Surgery, Morriston Hospital, Swansea, UK
3. Hepatopancreatobiliary Unit, Royal Marsden Hospital, London, UK
4. Department of Surgery, University Hospitals Coventry and Warwickshire NHS Trust, Coventry, UK
5. Hepatopancreatobiliary and Liver Transplant Unit, Royal Free Hospital, London, UK
6. Hepatopancreatobiliary Unit, Cambridge University Hospital, Cambridge, UK
7. Hepatopancreatobiliary Unit, King’s College Hospital, London, UK