1. Division of Gastroenterology, Hospital Beatriz Ângelo , Loures , Portugal
2. Division of Gastroenterology, Hospital da Luz , Lisboa , Portugal
3. Faculdade de Medicina, Universidade de Lisboa , Lisboa , Portugal
4. Department of Gastroenterology, Hospital Universitario de La Princesa, IIS-Princesa, UAM, CIBEREHD , Madrid , Spain
5. Department of Hepatology & Gastroenterology, Aarhus University Hospital , Aarhus , Denmark
6. Center for Molecular Prediction of Inflammatory Bowel Disease [PREDICT], Department of Clinical Medicine, Aalborg University , Copenhagen , Denmark
7. Department of Gastroenterology and Hepatology, University and Medical School of Ioannina , Ioannina , Greece
8. Department of Internal Medicine, Svet zdravia, Nemocnica Dunajska Streda , Slovakia
9. Firstst Department of Internal Medicine of University Hospital and Slovak Medical University in Bratislava , Bratislava , Slovakia
10. Dr Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai , New York, NY , USA
11. Gastrointestinal Unit, Department of Biomedical and Clinical Sciences. University of Milan , Milan , Italy
12. Department of Gastroenterology and Hepatology, University Medical Centre Groningen , Groningen , The Netherlands
13. Gastroenterology Research Unit, Department of Experimental and Clinical Biomedical Sciences ‘Mario Serio’, University of Florence , Florence , Italy
14. Gastroenterology Department, Careggi University Hospital , Florence , Italy
15. Department of Gastroenterology and Hepatology, University Hospitals Leuven , Leuven , Belgium
16. Department of Chronic Diseases, Metabolism and Ageing , KU Leuven, Leuven , Belgium
17. Department of Gastroenterology and Digestive Endoscopy, IRCCS San Raffaele Hospital and Vita-Salute San Raffaele University , Milan , Italy
18. Department of Gastroenterology, St Vincent’s Hospital Melbourne , Fitzroy, VIC , Australia
19. Inflammatory Bowel Diseases Unit, St Mark’s Hospital , Harrow , UK
20. Karolinska Institutet, Department of Medicine Solna , Stockholm , Sweden
21. Karolinska University Hospital, Department of Gastroenterology, Dermatovenereology and Rheumatology , Stockholm , Sweden
22. Clinic for Visceral Surgery and Medicine, Bern University Hospital , Bern , Switzerland
23. Crohn’s and Colitis Center, Gastroenterology Beaulieu SA , Lausanne , Switzerland
24. Department of Obstetrics and Gynaecology, Division of Obstetrics and Fetal Medicine Erasmus MC, University Medical Centre Rotterdam , Rotterdam , The Netherlands
25. Department of Surgery, Linköping University Hospital , Linköping , Sweden
26. Department of Biomedical and Clinical Sciences, Linköping University , Linköping , Sweden
27. Beaumont Hospital, Department of Gastroenterology, Royal College of Surgeons , Dublin , Ireland
28. Gastroenterology Unit, Bordeaux University Hospital , Pessac , France
29. Division of Gastroenterology and Hepatology, University Hospital Zurich , Zurich , Switzerland
30. Gastroenterology, Leeds Teaching Hospitals NHS Trust , Leeds , UK
31. University of Leeds , Leeds , UK
32. Charité-Universitätsmedizin Berlin, Department of Gastroenterology, Infectious Diseases and Rheumatology , Germany
33. Department of Gastroenterology, Ankara University School of Medicine , Ankara , Turkey
34. Department of Paediatrics, Haaglanden Medical Center , The Hague , The Netherlands
35. Department of Paediatrics, Erasmus Medical Center-Sophia Children’s Hospital , Rotterdam , The Netherlands
36. Department of Gastroenterology & Hepatology, Erasmus University Medical Center , Rotterdam , The Netherlands