1. Department of Gastroenterology and Hepatology, University Hospitals Leuven , Leuven , Belgium
2. Translational Research in Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism (CHROMETA) , KU Leuven, Leuven , Belgium
3. Imelda GI Clinical Research Center, Imelda General Hospital , Bonheiden , Belgium
4. Department of Gastroenterology and Hepatology, Hospital Universitari Germans Trias i Pujol , Badalona , Spain
5. Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd) , Madrid , Spain
6. Department of Surgery, Oncology and Gastroenterology, University of Padua , Padua , Italy
7. Gastroenterology Unit, Azienda Ospedale Università di Padova , Padua , Italy
8. Gastroenterology Department, Hôpital Saint-Louis – APHP, Université Paris Cité , INSERM U1160, Paris , France
9. Department of Gastroenterology, Guy’s and St Thomas’ NHS Foundation Trust , London , UK
10. Department of Inflammatory Bowel Disease, St Mark’s Hospital , Harrow, London , UK
11. Department of Biomedical Sciences, Humanitas University , Milan , Italy
12. Department of Surgery, Linköping University Hospital and Department of Biomedical and Clinical Sciences, Linköping University , Linköping , Sweden
13. Department of Gastroenterology and Hepatology, Erasmus MC, University Medical Centre Rotterdam , Rotterdam , the Netherlands
14. Department of Gastroenterology and Hepatology, Centre Médico-chirurgical Magellan, Hôpital Haut-Lévêque, CHU de Bordeaux, Université de Bordeaux , INSERM CIC 1401, Bordeaux , France
15. Paris IBD Center, Groupe Hospitalier Privé Ambroise-Paré Hartmann , Neuily/Seine , France