1. Translational Gastroenterology Unit; Nuffield Department of Medicine; Oxford NIHR Biomedical Research Centre; John Radcliffe Hospital; University of Oxford; Oxford UK
2. Solent Centre for Digestive Diseases; Portsmouth UK
3. School of Medicine; Cardiff University; Cardiff UK
4. Department of Gastroenterology; St James's Hospital; Dublin Ireland
5. Department of Gastroenterology; University Hospital of North Tees; Stockton-on-Tees UK
6. Northern Institute for Cancer Research; Newcastle University; Newcastle UK
7. St Mark's Hospital and Academic Institute; London UK