1. St Mark's Hospital and Academic Institute; London North West University Healthcare NHS Trust; London UK
2. Department of Surgery and Cancer; Imperial College London; London UK
3. Addenbrooke's Hospital; Cambridge University Hospitals NHS Foundation Trust; Cambridge UK
4. ACPGBI Inflammatory Bowel Disease Clinical Advisory Group; UK
5. Northern General Hospital; Sheffield Teaching Hospitals NHS Foundation Trust; Sheffield UK
6. National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre; Nottingham University Hospitals NHS Trust and University of Nottingham; Nottingham UK