1. Department of Paediatric Neurology, Emma Children's HospitalAmsterdam University Medical Centre (Amsterdam UMC), University of Amsterdam Amsterdam The Netherlands
2. Department of Paediatric GastroenterologyEmma Children's Hospital, Amsterdam UMC, University of Amsterdam Amsterdam The Netherlands
3. Department of Human Anatomy and EmbryologyGhent University Ghent Belgium
4. Department of PathologyUniversity Medical Centre Utrecht Utrecht The Netherlands
5. Department of PathologyAmsterdam UMC, University of Amsterdam Amsterdam The Netherlands