1. National Disease Registration Service NHS Digital Leeds UK
2. NIHR Nottingham Biomedical Research Centre University of Nottingham Nottingham UK
3. Population Health Sciences Institute Newcastle University Newcastle upon Tyne UK
4. Watford General Hospital Watford UK
5. Lifespan and Population Health University of Nottingham Nottingham UK
6. Nottingham Digestive Diseases Centre University of Nottingham Nottingham UK
7. Department of Haematology Nottingham City Hospital Nottingham UK