1. Gastroenterology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland;
2. ESiOR Oy, Kuopio, Finland;
3. Department of Internal Medicine, Kuopio University Hospital, Kuopio, Finland;
4. Department of Internal Medicine, South Karelia Central Hospital, Lappeenranta, Finland;
5. Department of Internal Medicine, Lapland Central Hospital, Rovaniemi, Finland;
6. Department of Internal Medicine, Central Finland Central Hospital, Jyväskylä, Finland;
7. Department of Internal Medicine, Satakunta Central Hospital, Pori, Finland;
8. Department of Internal Medicine, Vaasa Central Hospital, Vaasa, Finland;
9. Division of Gastroenterology, Department of Medicine, Turku University Hospital, Turku, Finland;
10. Department of Internal Medicine, Kainuu Central Hospital, Kajaani, Finland;
11. Division of Gastroenterology, Department of Medicine, Turku University Hospital/Salo Hospital, Salo, Finland;
12. Department of Internal Medicine, Central Ostrobothnia Central Hospital Kokkola, Finland;
13. Medical Affairs, Janssen Cilag AB Solna, Sweden;
14. Department of Epidemiology Research, Statens Serum Institut, Denmark Copenhagen;
15. Medical Affairs, Janssen Cilag Oy, Espoo Finland;
16. Janssen Cilag Limited, EMEA HEMAR, High Wycombe, United Kingdom;
17. Department of Internal Medicine, Päijät Häme Central Hospital, Lahti Finland