1. Faculty of Nursing Midwifery and Palliative Care, King's College London London UK
2. Centre for Neuroscience, Surgery and Trauma, Blizard Institute, Barts and the London School of Medicine and Dentistry Queen Mary University of London London UK
3. Bowel Research UK, Registered Charity London UK
4. Sheffield Teaching Hospitals NHS Trust & University of Sheffield Sheffield UK
5. Department Biostatistics and Health Informatics Institute of Psychology, Psychiatry and Neuroscience, King's College London London UK
6. Pragmatic Clinical Trials Unit Institute of Population Health Sciences, Barts and the London School of Medicine and dentistry, Queen Mary University of London London UK
7. County Durham and Darlington NHS Foundation Trust Durham UK
8. Warwick Clinical Trials Unit, Warwick Medical School University of Warwick Warwick UK
9. Royal Shrewsbury Hospital Shrewsbury and Telford Hospital NHS Trust Shrewsbury UK
10. Division of Diabetes, Endocrinology and Gastroenterology, Faculty of Biology, Medicine and Health University of Manchester and Manchester Academic Health Sciences Centre Manchester UK
11. Department of Psychology, Institute of Psychology, Psychiatry and Neuroscience King's College London London UK
12. Centre for Medical Imaging University College London London UK