Affiliation: | 1. Department of Pediatric Gastroenterology, Emma Children's Hospital, Academic Medical Center, Amsterdam, The Netherlands;2. Department of Pediatric Gastroenterology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands;3. Department of Pediatrics, Medisch Spectrum Twente, Enschede, The Netherlands;4. Department of Pediatric Gastroenterology, VU University Medical Center, Amsterdam, The Netherlands |