1. Department of Gastroenterology and HepatologyAalborg University HospitalAalborgDenmark
2. Clinical InstituteAalborg UniversityAalborgDenmark
3. GastrounitHvidovre University HospitalHvidovreDenmark
4. Copenhagen University Hospital/HerlevCopenhagenDenmark
5. Abdominalcenter KBispebjerg HospitalCopenhagenDenmark
6. Department of Clinical MedicineUniversity of BergenBergenNorway
7. Department of MedicineHaukeland University HospitalBergenNorway
8. Pediatric DepartmentHaukeland University HospitalBergenNorway
9. Center for Diabetes ResearchUniversity of BergenBergenNorway
10. Department of SurgeryOslo University HospitalOsloNorway
11. Department of GastroenterologyOslo University HospitalOsloNorway
12. Faculty of MedicineUniversity of OsloOsloNorway
13. Centre for Digestive DiseasesKarolinska University HospitalStockholmSweden
14. Department of SurgeryLithuanian University of Health SciencesKaunasLithuania
15. Centre of GastroenterologyHepatology and NutritionPauls Stradins Clinical University HospitalRigaLatvia
16. Chair of Internal Diseases PropedeuticsIM Sechenov First Moscow State Medical University (Sechenov University)MoscowRussia
17. Department of Gastroenterology and Alimentary Tract SurgeryTampere University HospitalTampereFinland
18. Faculty of Medicine and Health TechnologyTampere UniversityTampereFinland