1. Gastro Unit, Medical Division, Hvidovre Hospital, University of Copenhagen , Hvidovre , Denmark
2. Copenhagen Center for Inflammatory Bowel Disease in Children, Adolescents and Adults, Hvidovre Hospital , Hvidovre , Denmark
3. Department of Paediatrics and Adolescent Medicine, Hvidovre Hospital, University of Copenhagen , Hvidovre , Denmark
4. Department of Clinical Medicine, University of Copenhagen , Copenhagen , Denmark