1. Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
2. Department of Gastroenterology, Addenbrooke’s Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
3. Pancreaticobiliary Medicine Unit, University College London Hospitals NHS Foundation Trust, London, UK
4. Department of Radiology, Addenbrooke’s Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
5. Cambridge University Hospitals NHS Foundation Trust, Addenbrooke’s Hospital, Department of General Surgery, Colorectal Surgery Unit, Cambridge, UK