1. Department of Gastroenterology & Hepatology; Academic Medical Centre; Amsterdam the Netherlands
2. Tytgat Institute for Liver and GI Research; Academic Medical Centre; Amsterdam the Netherlands
3. Department of Paediatrics; Onze Lieve Vrouwe Gasthuis; Amsterdam the Netherlands
4. Department of Pathology; Academic Medical Centre; Amsterdam the Netherlands
5. Department of Dermatology and Allergology; University Medical Centre; Utrecht the Netherlands
6. Nutricia Research; Nutricia Advanced Medical Nutrition; Utrecht the Netherlands