1. Department of Rehabilitation, Amalia Children's Hospital Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center Nijmegen the Netherlands
2. Department of Paediatrics Sint Antonius Hospital Nieuwegein the Netherlands
3. Department of Cardiology Radboud University Medical Centre Nijmegen the Netherlands
4. Department of Clinical Genetics Leiden University Medical Centre Leiden the Netherlands
5. Department of Pediatric Neurology Juliana Children's Hospital/Haga Teaching Hospital The Hague the Netherlands
6. Department of Neurology Maastricht University Medical Center Maastricht the Netherlands
7. Department of Neurology, Donders Centre for Neuroscience Radboud University Medical Center Nijmegen the Netherlands
8. Department of Pediatric Neurology, Donders Centre for Neuroscience, Amalia Children's Hospital Radboud University Medical Center Nijmegen the Netherlands