1. Academic Gastroenterology Department, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
2. Gastroenterology Department, Leeds Teaching Hospitals, Leeds, UK
3. Gastroenterology Department, Hull University Teaching Hospitals, Hull, UK
4. Department of Radiology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
5. Department of Enteral Nutrition, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
6. Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK
7. Department of Oncology and Metabolism, The Medical School, The University of Sheffield, Sheffield, UK