1. Neuromuscular Disorders Unit Department of Neurology Instituto de Biomedicina de Sevilla Hospital U. Virgen del Rocío/CSIC/Universidad de Sevilla Sevilla Spain
2. Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED) Madrid Spain
3. Department of Biochemistry and Cell Biology Stony Brook University Stony Brook NY USA
4. Department of Molecular and Human Genetics Baylor College of Medicine Houston TX USA
5. Memory Unit Department of Neurology and Sant Pau Biomedical Research Institute Hospital de la Santa Creu i Sant Pau Universitat Autònoma de Barcelona Barcelona Spain
6. Department of Medical Physiology and Biophysics Instituto de Biomedicina de Sevilla Hospital U. Virgen del Rocío/CSIC/Universidad de Sevilla Sevilla Spain
7. Department of Neurology Columbia University Medical Center New York NY USA
8. Department of Pathology Instituto de Biomedicina de Sevilla Hospital U. Virgen del Rocío/CSIC/Universidad de Sevilla Sevilla Spain
9. Centro Andaluz de Biología del Desarrollo (CABD) Universidad Pablo Olavide Sevilla Spain
10. Department of Neurology Hospital U. Valme Sevilla Spain
11. Laboratori de Malalties Neuromusculars Institut de Recerca de HSCSP Universitat Autònoma de Barcelona (UAB) Barcelona Spain
12. Centro de Investigación Biomédica en Red sobre Enfermedades Raras (CIBERER) Barcelona Spain
13. Human Genotyping Unit‐CeGen Spanish National Cancer Research Centre Madrid Spain
14. UPMC Univ Paris 06 INSERM UMRS974 CNRS FRE3617 Center for Research in Myology Sorbonne Universités Paris France