1. Department of General Surgery, University Hospital of Wales, Cardiff & Vale NHS Trust, Cardiff, United Kingdom
2. Hepatobiliary and Pancreatic Surgery and Liver transplant Unit, Queen Elizabeth Hospital, Birmingham, United Kingdom
3. Department of Hepatobiliary and Pancreatic Surgery, Manchester Royal Infirmary Hospital, Manchester, United Kingdom
4. Department of General Surgery, Wrexham Maelor Hospital, Betsi Cadwaladr University Health Board, Wrexham, United Kingdom
5. Department of Internal Medicine, Mount Sinai Morningside and West Hospitals, New York, NY, United States
6. Department of General Surgery, North Manchester General Hospital, North Manchester Care Organisation, Manchester, United Kingdom
7. Department of Hepatobiliary and Pancreatic Surgery, Royal Blackburn Hospital, Blackburn, United Kingdom