1. Department of Nutrition and Dietetics, Derriford Hospital, Plymouth, UK;
2. Department of Radiology, Derriford Hospital, Plymouth, UK;
3. Department of Gastroenterology, Musgrove Park Hospital, Taunton, UK;
4. Department of Gastroenterology, Royal Cornwall Hospitals NHS Trust, Treliske, UK;
5. Department of Gastroenterology, Derriford Hospital, Plymouth, UK