1. Department of Gastroenterology, Copenhagen University Hospital–Herlev and Gentofte, Herlev, Denmark
2. Institute for Inflammation Research IRR, Rigshospitalet University Hospital, Copenhagen
3. Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
4. Department of Medical Diseases, Herning Regional Hospital, Herning, Denmark
5. Department of Gastroenterology, Akershus University Hospital, Institute of Clinical Medicine, University of Oslo, Oslo
6. Department of Medical Diseases, Nykøbing F. Regional Hospital, Nykøbing, Denmark
7. Department of Gastroenterology, Slagelse Regional Hospital, Slagelse, Denmark
8. Department of Medical Gastroenterology S, Odense University Hospital, Odense, Denmark
9. Inflammatory Bowel Disease Unit, Division of Gastroenterology, Karolinska University Hospital, Stockholm, Sweden
10. Departement of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
11. Department of Gastroenterology K, Copenhagen University Hospital–Bispebjerg, Frederiksberg, Denmark
12. Department of Gastroenterology, Copenhagen University Hospital–Amager and Hvidovre, Hvidovre, Denmark
13. Diagnostic Center, Silkeborg Regional Hospital, Central Jutland, Denmark
14. Department of Gastroenterology, Skåne University Hospital, Malmö, Sweden
15. Gastroenterology, Abdominal Center, Helsinki University Hospital, University of Helsinki, Helsinki