1. Department of Child Neurology Brain Center Rudolf Magnus University Medical Center Utrecht Utrecht
2. Department of Genetics Center for Molecular Medicine University Medical Center Utrecht Utrecht
3. Stichting Epilepsie Instellingen Nederland (SEIN) Heemstede The Netherlands
4. UCL Institute of Neurology NIHR University College London Hospitals Biomedical Research Centre London
5. Chalfont Centre for Epilepsy Chalfont St Peter UK