1. Dubowitz Neuromuscular CentreUCL Great Ormond Street Institute of Child Health & Great Ormond Street Hospital London UK
2. Department of Clinical NeurophysiologyGreat Ormond Street Hospital for Children NHS Foundation Trust London UK
3. MRC Centre for Neuromuscular DiseasesNational Hospital for Neurology and Neurosurgery and UCL Queen Square Institute of Neurology London UK
4. NIHR Great Ormond Street Hospital Biomedical Research Centre, Great Ormond Street Institute of Child HealthUniversity College London & Great Ormond Street Hospital Trust London UK