1. Northern Care Alliance NHS Foundation Trust, Division of Gastroenterology-Section of IBD, Manchester, UK; and. Edgehill University , Ormskirk , UK
2. Translational Gastroenterology Unit , Oxford University Hospitals NHS Foundation Trust, Oxford, UK; and Oxford University Clinical Academic Graduate School, University of Oxford, Oxford , UK
3. Department of Vascular and Endovascular Surgery, Manchester University NHS Foundation Trust, Manchester, UK; and Division of Cardiovascular Sciences, School of Medical Sciences, Manchester Academic Health Science Centre, University of Manchester , Manchester , UK
4. Mayo Clinic, Division of Gastroenterology and Hepatology , Jacksonville, FL , USA
5. University of Maryland School of Medicine, Division of Gastroenterology & Hepatology , Baltimore, MD , USA
6. Northern Care Alliance NHS Foundation Trust, Division of Gastroenterology-Section of IBD, Manchester, UK; and Manchester Academic Health Sciences, University of Manchester , Manchester , UK