1. Department of Pediatric Gastroenterology, Sophia Children’s Hospital , Rotterdam , The Netherlands
2. Pediatric Gastroenterology, Centre for Immunobiology, Blizard Institute, Barts and the London School of Medicine, Queen Mary University of London , London , UK
3. Department of Epidemiology, Erasmus Medical Centre , Rotterdam , The Netherlands
4. Department of Pediatric Gastroenterology, Université Paris Descartes, Sorbonne Paris Cité, Hôpital Necker Enfants Malades , Paris , France
5. Delft Bioinformatics Laboratory, Delft University of Technology , Delft , The Netherlands