VU University Medical Centre - Department of Paediatric Gastroenterology, VU University Medical Centre - Department of Paediatric Gastroenterology, Academic Medical Center - Department of Paediatric Gastroenterology, University of Amsterdam - Amsterdam University Medical Centers, VU University Medical Centre - Department of Obstetrics and Gynaecology, VU University Medical Centre - Department of Gastroenterology and Hepatology, University of Groningen - Department of Pharmaceutical Analysis, Academic Medical Center - Department of Paediatric Gastroenterology, VU University Medical Centre - Department of Paediatric Gastroenterology, VU University Medical Centre - Department of Obstetrics and Gynaecology, Danone Nutricia Research, Danone Nutricia Research, Danone Nutricia Research, Danone Nutricia Research, VU University Medical Centre - Department of Obstetrics and Gynaecology and VU University Medical Centre - Department of Paediatric Gastroenterology

University of Amsterdam - Amsterdam University Medical Centers, Wellcome Sanger Institute, University of Amsterdam - Amsterdam University Medical Centers, University of Amsterdam - Amsterdam University Medical Centers, University of Amsterdam - Amsterdam University Medical Centers, University of Amsterdam - Amsterdam University Medical Centers, University of Amsterdam - Department of Medical Microbiology and Infection Prevention and Independent