1. Department of Gastroenterology and Hepatology, Academic Medical Centre, Amsterdam, the Netherlands
2. Tees Bowel Cancer Screening Centre, University Hospital of North Tees, Stockton-on-Tees Cleveland, UK
3. Newcastle University, Newcastle-upon-Tyne, UK
4. Nottingham Digestive Diseases Centre, University of Nottingham and NIHR Biomedical Research Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK
5. Department of Gastroenterology, South Tyneside District Hospital, Tyne and Wear, UK
6. Translational Gastroenterology Unit, and Oxford NIHR Biomedical Research Centre, John Radcliffe Hospital, University of Oxford, UK
7. Departmernt of Cellular Pathology, John Radcliffe Hospital, University of Oxford, UK
8. Department of Pathology, Academic Medical Centre, Amsterdam, the Netherlands