1. Huddersfield Royal Infirmary Huddersfield UK
2. NIHR Evaluations Trials and Studies Coordinating Centre Wessex Institute University of Southampton University Hospitals NHS Trust Southampton UK
3. University Hospital Birmingham NHS Trust and University of Birmingham Birmingham UK
4. John Radcliffe Hospital Oxford UK
5. Birmingham Clinical Trials Unit University of Birmingham Birmingham UK
6. Imperial College London UK
7. St Mark's Hospital Harrow UK
8. Bowel Disease Research Foundation London UK
9. Crohn's and Colitis UK St Alban's UK
10. Addenbrooke's Hospital Cambridge UK