1. Neuromuscular Unit Neuropaediatrics Department Institut de Recerca Hospital Sant Joan de Déu and CIBERER U703 Barcelona Spain
2. Department of Radiology Hospital Sant Joan de Déu Barcelona Spain
3. Department of Genetics Hospital de la Santa Creu i Sant Pau and CIBERER U705 Barcelona Spain
4. Unit of Epilepsy, Sleep and Neurophysiology Neuropaediatrics Department Hospital Sant Joan de Déu Barcelona Spain
5. Statistics Department Fundació Sant Joan de Déu Barcelona Spain
6. Department of Pathology Hospital Sant Joan de Déu Barcelona Spain
7. Department of Genetic and Molecular Medicine Hospital Sant Joan de Déu Barcelona Spain
8. Laboratory of Neurogenetics and Molecular Medicine Institut de Recerca Sant Joan de Déu Barcelona Spain
9. Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER) Barcelona Spain
10. Institute of Medicine and Dermatology Hospital Clínic and Division of Pediatrics University of Barcelona School of Medicine and Health Sciences Barcelona Spain
11. Epileptology, Sleep Disorders and Functional Pediatric Neurology Member of ERN‐EpiCARE; HFME Hospices Civils de Lyon Bron France