1. Basic and Translational Myology LaboratoryUMR8251, University of Paris/National Center for Scientific Research Paris France
2. Reference Center for Neuromuscular DisordersPitié‐Salpêtrière Hospital, APHP, Institute of Myology Paris France
3. Neuromuscular UnitUniversity Hospital Center Montpellier/EA7402 University of Montpellier, University Institute of Clinical Research Montpellier France
4. Manton Center for Orphan Disease Research, Division of Genetics and GenomicsBoston Children's Hospital, Harvard Medical School Boston MA
5. I‐Motion, Institute of Myology, APHP Paris France
6. Department of Molecular Biology and GeneticsBiruni University Istanbul Turkey
7. Department of Pediatric Neurology, Reference Neuromuscular CenterQueen Fabiola Children's University Hospital, Free University of Brussels Brussels Belgium
8. Center for Mendelian GenomicsBroad Institute of Massachusetts Institute of Technology and Harvard Cambridge MA
9. Department of Translational Medicine and NeurogeneticsInstitute of Genetics and Molecular and Cellular Biology, National Institute of Health and Medical Research U1258, National Center for Scientific Research UMR7104, University of Strasbourg Illkirch France
10. Department of Neuropediatrics, University Hospital Center AngersNeuromuscular Diseases Reference Center Antlantique Occitanie Caraïbe Angers France
11. Laboratory of Biochemistry and Molecular GeneticsUniversity Hospital Center Grenoble Grenoble France
12. Neuromuscular Morphology UnitInstitute of Myology, Pitié‐Salpêtrière Hospital Paris France
13. Division of Child Neurology, Neuromuscular Diseases Reference Center, Department of PediatricsLiège University Hospital and University of Liège Liège Belgium
14. Molecular Genetics LaboratoryUniversity Hospital Center Montpellier/National Institute of Health and Medical Research U827, University Institute of Clinical Research Montpellier France
15. Neuropathology Unit, Department of Pathology and Neuromuscular UnitInstitute of Biomedical Research of Bellvitge–University Hospital of Bellvitge Barcelona Spain