1. Department of Neurology Hospital General Universitario Gregorio Marañon Madrid Spain
2. Movement Disorders Unit, National Referral Center for rare diseases with Movement Disorders (CSUR) Hospital General Universitario Gregorio Marañon Madrid Spain
3. Neurosciences Area Instituto Investigacion Sanitaria Gregorio Marañon Madrid Spain
4. Department of Neurology Hospital Universitario Donostia San Sebastian Spain
5. Department of Neurosciences Instituto Biodonostia San Sebastian Spain
6. Department of Neurology Hospital General Universitari Vall d'Hebron‐UAB‐VHIR Barcelona Spain
7. European Reference Network on Rare Neurological Diseases (ERN‐RND) Hospital General Universitari Vall d'Hebron‐UAB Barcelona Spain
8. ALS‐Neuromuscular Unit Hospital General Universitario Gregorio Marañon Madrid Spain
9. Department of Neurology, Hospital Ruber Juan Bravo Grupo Quironsalud Madrid Spain
10. Instituto de Investigación Biosanitaria del Principado de Asturias (ISPA) Oviedo Spain
11. Department of Neurology Hospital Universitario Central de Asturias Oviedo Spain
12. Genetics Unit Hospital Universitario Basurto Bilbao Spain
13. Department of Neurology, Hospital Universitario Marques de Valdecilla‐IDIVAL University of Cantabria Santander Spain
14. Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED) Institute Carlos III Spain
15. Hospital de Zumarraga Zumarraga Spain
16. Department of Pathology Complejo Hospitalario de Navarra Pamplona Spain
17. Department of Neurology Complejo Hospitalario de Navarra Pamplona Spain
18. Department of Genetics Hospital Universitario Donostia San Sebastian Spain
19. Department of Pathology Hospital General Universitario Gregorio Marañon Madrid Spain
20. Department of Pathology Hospital General Universitari Vall d'Hebron‐UAB‐VHIR Barcelona Spain
21. Department of Medicine UAB Barcelona Spain
22. Neurometabolic Diseases Laboratory, Bellvitge Biomedical Research Institute (IDIBELL) L'Hospitalet de Llobregat Barcelona Spain
23. Catalan Institution of Research and Advanced Studies (ICREA) Barcelona Spain
24. Center for Biomedical Research on Rare Diseases (CIBERER) Institute Carlos III Madrid Spain
25. Department of Clinical Movement Neurosciences, UCL Queen Square Institute of Neurology Royal Free Campus London United Kingdom
26. MRC Centre for Neuromuscular Diseases UCL Queen Square Institute of Neurology and National Hospital for Neurology and Neurosurgery London United Kingdom
27. IKERBASQUE Basque Foundation for Science Bilbao Spain
28. Genetics Laboratory, AGC Medicine Laboratory Hospital Universitario Central de Asturias Oviedo Spain
29. Department of Neurosciences UPV/EHU San Sebastian Spain
30. Ciberned, Ministry of Science, Innovation and Universities Madrid Spain