1. Pediatric Neurology Department Hospital Sant Joan de Déu Barcelona Barcelona Spain
2. Department of Pediatric Neurology Hospital Universitario San Pedro de Alcántara Cáceres Spain
3. Department of Pediatric Neurology Hospital Universitario de Salamanca Castilla y Leon Spain
4. Department of Genetic and Molecular Medicine‐IPER Institut de Recerca Sant Joan de Déu Barcelona Spain
5. U‐703 Centre for Biomedical Research on Rare Diseases (CIBER‐ER) Instituto de Salud Carlos III Barcelona Spain
6. Movement Disorders Unit, Pediatric Neurology Department, Institut de Recerca Hospital Sant Joan de Déu Barcelona Barcelona Spain
7. European Reference Network for Rare Neurological Diseases (ERN‐RND) Barcelona Spain