4 Department of Genetic Medicine, Belfast City Hospital, Belfast, Northern Ireland, UK.
5 Department of Dermatology, Copenhagen University Hospital Bispebjerg, Copenhagen, NV, Denmark.
6 Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Melbourne, Australia.
7 Department of Neurology, Interdisciplinary Excellence Center, Faculty of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary.
8 Department of Pediatric Neurology, Clínica Las Condes, Santiago, Chile.
9 The Kennedy Center, Department of Clinical Genetics, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.
10 Institute of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
11 Department of Clinical Genetics, Odense University Hospital, Odense, Denmark.
12 Oxford Regional Genetics Service, Oxford University Hospitals, Oxford, UK.
13 Department of Medical Genetics, Poznañ University of Medical Sciences, Poznañ, Poland.
14 Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, The Netherlands.
15 Genetic Health Service New Zealand-Northern Hub, Auckland, New Zealand.
16 Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, QC, Canada.
17 Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, UK.
18 Chalfont Centre for Epilepsy, Bucks, UK.
19 Department of Pediatrics, Amsterdam University Medical Center, Amsterdam, Netherlands.
20 Medical Genetics Division, Department of Pediatrics, Sainte-Justine University Hospital Center, Montreal, QC, Canada. p.campeau@umontreal.ca.