1. Department of Gastroenterology and Hepatology, Erasmus MC, Rotterdam, The Netherlands
2. Referral Center for Paediatric Gastroenterology & Nutrition, Children's Hospital Zagreb, University of Zagreb Medical School, Zagreb, Croatia
3. Department of Gastroenterology and Liver Diseases, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
4. Faculty of Medicine, Department of Gastrointestinal Surgery, Akershus University Hospital, Lørenskog, Norway
5. Department of Gastroenterology, University Hospital Gasthuisberg, Leuven, Belgium
6. Department of Gastroenterology, Herlev University Hospital, Copenhagen, Denmark
7. Department of Clinical Medicine, UCSF Center for Colitis and Crohn's Disease, San Francisco, United States
8. Locum Obstretic Physician, Women's Centre, John Radcliffe Hospital, Oxford, United Kingdom
9. Department of Medicine I, Agaplesion Markus Hospital, Goethe University, Frankfurt/Main, Germany