1. Department of Human Genetics, Leiden University Medical Center, Leiden, the Netherlands.
2. John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom.
3. Medicines and Healthcare Product Regulatory Agency, London, United Kingdom.
4. Central Nervous System and Ophthalmology, Scientific and Regulatory Management Department, Human Medicines Evaluation Division, European Medicines Agency, London, United Kingdom.
5. Bundesinstitut für Arzneimittel und Medizinprodukte, Bonn, Germany.
6. Medicines Evaluation Board, Utrecht, the Netherlands.
7. Department of Pediatric Neurology, Catholic University, Rome, Italy.
8. Centro Clinico Nemo, Policlinico Gemelli, Rome, Italy.
9. Dubowitz Neuromuscular Center, UCL Great Ormond Street Institute of Child Health, London, United Kingdom.
10. Faculdade de Farmácia, Universidade de Lisboa, Lisboa, Portugal.
11. United Parent Project Muscular Dystrophy, Amsterdam, the Netherlands.