1. Department of Pediatric Neurology Vall d'Hebron Hospital Universitary and Vall d'Hebrón Research Institute (VHIR). Barcelona Spain
2. Department of Pediatrics, Obstetrics, Gynecology, Preventative Medicine and Public Health Universitat Autònoma de Barcelona Barcelona Spain
3. Center for Biomedical Network Research on Rare Diseases (CIBERER) CB06/07/0063 Barcelona Spain
4. Developmental Neurosciences Programme Great Ormond Street–Institute of Child Health, University College London London United Kingdom
5. Dubowitz neuromuscular Center Great Ormond Street Hospital for Children London United Kingdom
6. Department of Pediatric Neurology Sant Joan de Déu Hospital Barcelona Spain
7. Unit of Child Neurology and Psychiatry, Department of Human Neuroscience Sapienza University of Rome Rome Italy
8. Gene Transfer Technology Group Institute for Women's Health, University College London London United Kingdom
9. Kids Neuroscience Centre and Brain and Mind Centre, Faculty of Medicine and Health University of Sydney Westmead New South Wales Australia
10. Department of Pediatric Neurology John Radcliffe Hospital Oxford United Kingdom
11. PEDEGO Research Unit, Department of Children and Adolescents, Medical Research Center Oulu Oulu University Hospital, University of Oulu Oulu Finland
12. School of Medicine St James's University Hospital, University of Leeds Leeds United Kingdom
13. Pediatric Neurology, Neurogenetics and Neurobiology Unit and Laboratories, Neuroscience Department A. Meyer Children's Hospital, University of Florence Florence Italy
14. North West Thames Regional Genetic Service Northwick Park Hospital London United Kingdom
15. Department of Pediatrics, Division of Child Neurology Ege University Medical Faculty İzmir Turkey
16. Child Neuropsychiatry Unit, Istituto Giannina Gaslini, Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics and Maternal and Children's Sciences University of Genoa Genoa Italy
17. Institute for Neuroscience and Muscle Research Children's Hospital at Westmead, University of Sydney Sydney New South Wales Australia
18. First Department of Pediatrics Agia Sofia Children's Hospital, National and Kapodistrian University of Athens Athens Greece
19. Neuroscience and Mental Health Research Institute Institute of Psychological Medicine and Clinical Neurosciences, School of Medicine, Cardiff University Cardiff United Kingdom