1. Department of Paediatric Neurology, Leeds General Infirmary, Leeds, UK
2. Divisions of Developmental Medicine and Genetic Medicine, University of Washington Seattle Childrens Hospital, Seattle, Washington, USA
3. Unit of Child Neurology and Psychiatry, IRCCS “C. Mondino Institute of Neurology” Foundation, Pavia, Italy
4. Department of Neuroradiology, Montreal Neurological Institute, Montreal, CanadaM
5. Laboratoire de Genetique
6. Department of Paediatric Neurology, Bristol Children’s Hospital, Bristol, UK
7. Department of Clinical Genetics, Bristol, UK
8. Department of Genetic Medicine, Manchester Academic Health Science Centre, Central Manchester Foundation Trust University Hospitals, University of Manchester, Manchester, UK
9. Neuroscience Unit, Alder Hey Childrens NHS Foundation Trust, Littlewood, Liverpool, UK
10. Department of Child Neurology VU University Medical Center, Amsterdam, The Netherlands
11. Department of Genetic Medicine, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK