1. NIHR Nottingham Digestive Diseases Biomedical Research Centre, University of Nottingham, Nottingham, UK
2. Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
3. Department of Gastroenterology and Hepatology, University of Zurich, Zurich, Switzerland
4. Clinical Trials Research Unit, Leeds Institute of Clinical Trials Research, University of Leeds, Leeds, UK
5. Nottingham Digestive Diseases Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK
6. Royal Stoke Hospital, University Hospitals of North Midlands NHS Trust, Stoke, UK
7. St Mark’s Hospital, Harrow, UK
8. University of Edinburgh, Western General Hospital, Edinburgh, UK
9. Sandwell and West Birmingham NHS Trust, Birmingham, UK
10. Barnsley Hospital NHS Foundation Trust, Barnsley, UK
11. University NHS Foundation Trust, Manchester, UK
12. Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield Wythenshawe Hospital, Manchester, UK
13. Tees Valley Hospital, Middlesbrough, UK
14. University of Manchester, Manchester, UK
15. St James’s University Hospital, Leeds, UK
16. Discipline of Surgery and Gastroenterology, Flinders Medical Centre, Flinders University, South Australia, Australia
17. Leeds Institute of Medical Research at St. James’s, University of Leeds, Leeds, UK