1. Department of Internal Medicine and Paediatrics, Ghent University , Ghent , Belgium
2. VIB Center for Inflammation Research (IRC), Ghent University , Ghent , Belgium
3. Ghent Gut Inflammation Group (GGIG), Ghent University , Ghent , Belgium
4. Department of Gastroenterology, University Hospital Ghent , Ghent , Belgium
5. Department of Gastroenterology , AZ Sint Lucas, Ghent , Belgium
6. Department of Gastroenterology, Hospital Ramon y Cajal , Madrid , Spain
7. Department of Gastroenterology, Hospital de Galdakao , Bilbao , Spain
8. Department of Gastroenterology, Hospital Universitari Germans Trias i Pujol , Barcelona , Spain
9. Department of Gastroenterology, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel , Brussels , Belgium
10. Department of Gastroenterology, University Hospital Antwerp , Antwerp , Belgium
11. Department of Gastroenterology, Hospital Clínico Universitario de Santiago, Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS) , Santiago de Compostela , Spain
12. Department of Gastroenterology, AZ Nikolaas , Sint-Niklaas , Belgium
13. Department of Gastroenterology, Hospital Universitari Mútua de Terrassa , Barcelona , Spain
14. Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, CIBERehd , Barcelona , Spain
15. Department of Gastroenterology, Hospital Universitari de Girona Doctor Joseph Trueta , Girona , Spain
16. Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University and Research , Wageningen , The Netherlands
17. Department of Rheumatology, University Hospital Ghent , Ghent , Belgium