1. Joint Advisory Group on Gastrointestinal Endoscopy, Royal College of Physicians, London, UK
2. Department of Endoscopy, Dudley Group Hospitals NHSFT, Dudley, UK
3. Medical and Dental Sciences, University of Birmingham, Birmingham, UK
4. Department of Gastroenterology, Gloucestershire Hospitals NHSFT, Gloucester, UK
5. Department of Gastroenterology, Torbay and South Devon NHS Foundation Trust, Torquay, UK
6. Department of Gastroenterology, Cwm Taf University Health Board, Llantrisant, UK
7. Department of Gastroenterology, University College London Hospitals NHSFT, London, UK
8. Department of Gastroenterology, Royal Wolverhampton Hospitals NHS Trust, Wolverhampton, UK
9. General and Colorectal Surgery, Torbay and South Devon NHS Foundation Trust, Torquay, UK
10. Institute of Translational Medicine, University Hospitals Birmingham, Birmingham, UK
11. Department of Gastroenterology, North Tees and Hartlepool NHS Foundation Trust, Stockton on Tees, UK
12. Wolfson Unit for Endoscopy, St Mark’s Hospital, London, UK
13. Imperial College London, London, UK
14. Department of Gastroenterology, Norfolk and Norwich University Hospital, Norwich, UK