1. Dubowitz Neuromuscular Centre; Institute of Child Health, University College London; London UK
2. Department of Anaesthesia and Biomedicine; Basel University and University Hospital Basel; Basel Switzerland
3. UM76 Université Pierre et Marie Curie; UMRS974 INSERM, UMR 7215 CNRS, Institut de Myologie AIM, Groupe hospitalier Pitié-Salpétrière, 47 bd de I'Hôpital; Paris France
4. Department of Paediatric Neurology; School of Child and Adolescent Health, University of Cape Town, Red Cross Children's Hospital; Cape Town South Africa
5. Department of Paediatric Pathology; School of Child and Adolescent Health, University of Cape Town, Red Cross Children's Hospital; Cape Town South Africa
6. Cell and Developmental Biology; University College London; London UK
7. Department of Paediatric Neurology; Evelina Children's Hospital; London UK
8. Clinical Neuroscience Division; IoP, King's College; London UK
9. Randall Division of Cell and Molecular Biophysics; Muscle Signalling Group; King's College London; London UK
10. Department of Life Sciences; University of Ferrara; Ferrara Italy