1. The Evidence-Based Medicine Consultancy Ltd; Bath UK
2. Gastroenterology; University Hospital Llandough / Cardiff University; Vale of Glamorgan UK
3. Department of Oncology and Haematology; Royal United Hospitals Bath NHS Trust; Bath UK
4. Royal Marsden Clinical Trials Unit; The Royal Marsden NHS Foundation Trust; Sutton UK
5. School of Health Sciences; The University of Manchester, and Manchester Academic Health Science Centre; Manchester UK
6. Clinical Oncology; The Christie NHS Foundation Trust; Manchester UK
7. Intestinal Failure Unit; Salford Royal Foundation Trust; Salford UK
8. Gastroenterology; University Hospital of South Manchester NHS Foundation Trust, Wythenshawe Hospital; Manchester UK
9. Department of Gastroenterology; Royal Marsden Hospital, London; London UK