1. Institute of Rare Diseases Research (IIER), Institute of Health Carlos III (ISCIII), Madrid, Spain
2. John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine, Newcastle University, Newcastle, UK
3. National Center for Rare Diseases, Istituto Superiore di Sanità, Rome, Italy
4. Fondazione Telethon, Milan, Italy
5. Office of Rare Diseases Research (ORDR), National Center for Advancing Translational Sciences (NCATS), National Institutes of Health (NIH), Bethesda, MD, USA
6. Institute of Rare Diseases Research (IIER), SpainRDR & CIBERER, Institute of Health Carlos III (ISCIII), Madrid, Spain