1. Gastro Unit, Medical Division, Copenhagen University Hospital – Amager and Hvidovre , Hvidovre , Denmark
2. Copenhagen Center for Inflammatory Bowel Disease in Children, Adolescents and Adults, Copenhagen University Hospital – Amager and Hvidovre , Hvidovre , Denmark
3. Tillotts Pharma AG , Rheinfelden , Switzerland
4. Institute of Social and Preventive Medicine, University of Bern , Bern , Switzerland
5. Division of Gastroenterology and Hepatology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Community Health Sciences, University of Calgary , Calgary, AB , Canada