1. Neurometabolic Diseases Laboratory Bellvitge Biomedical Research Institute (IDIBELL) L'Hospitalet de Llobregat08908Spain
2. Pediatrics Department University Hospital Germans Trias i Pujol Badalona08916Spain
3. Center for Biomedical Research on Rare Diseases (CIBERER) ISCIII Madrid Spain
4. INSERM U1078 Brest France
5. Laboratory of Excellence GR‐Ex Paris France
6. Laboratoire de Génétique Moleculaire et Histocompatibilité CHRU de BrestHôpital Morvan Brest France
7. Neurology Department Hospital Universitario Infanta Sofía San Sebastián de los Reyes28703Spain
8. Neuromuscular Unit Neurology Department Hospital Universitari de Bellvitge L'Hospitalet de Llobregat08908Spain
9. Université Bretagne LoireUniversité de Bretagne OccidentaleIBSAM Brest France
10. Catalan Institution of Research and Advanced Studies (ICREA) Barcelona Spain