1. Department of Gastroenterology, Addenbrooke’s Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
2. Department of Gastroenterology and Hepatology, University Hospitals Leuven, KU Leuven, Leuven, Belgium
3. Department of Chronic Diseases and Metabolism, TARGID - IBD, KU Leuven, Leuven, Belgium
4. Department of Gastroenterology, Sheba Medical Center, Ramat Gan, Israel
5. Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
6. Department of Gastroenterology, Venizeleio General Hospital, Heraklion, Greece
7. Department of Gastroenterology, Monash Health and School of Clinical Sciences, Monash University, Melbourne, VIC, Australia
8. Department of Medicine 1, University of Erlangen-Nürnberg, Erlangen, Germany
9. Gastrounit, Medical Division, Hvidovre Hospital, University of Copenhagen, Copenhagen, Denmark
10. Colorectal and General Surgery, Beaumont Hospital, Dublin, Ireland
11. Department of Medicine, Division of Gastroenterology, Mater Dei Hospital, Msida, Malta
12. Karolinska Institutet, Department of Medicine Solna, Stockholm, Sweden
13. Karolinska University Hospital, Gastroenterology Unit, Department of Gastroenterology, Dermatovenereology and Rheumatology, Stockholm, Sweden
14. Department of Colon & Rectal Surgery, Cleveland Clinic, Cleveland, OH, USA
15. Department of Gastroenterology and Hepatology, University and Medical School of Ioannina, Ioannina, Greece
16. Department of Gastroenterology, Ghent University Hospital, Ghent, Belgium
17. Medical Faculty of the Friedrich Schiller University, Jena, Germany
18. Centre for Colorectal Disease, St Vincent’s University Hospital and School of Medicine, University College Dublin, Gastroenterology, Dublin, Ireland