1. Wellcome Centre for Mitochondrial ResearchNewcastle University Newcastle upon Tyne United Kingdom
2. Faculty of MedicineUniversity of Turku, and Division of Clinical Neurosciences, Turku University Hospital Turku Finland
3. Medical Research Council Centre for Neuromuscular DiseasesUniversity College London Queen Square Institute of Neurology and National Hospital for Neurology and Neurosurgery London United Kingdom
4. Department of Neuromuscular DiseasesUniversity College London Queen Square Institute of Neurology London United Kingdom
5. Nuffield Department of Obstetrics and GynaecologyUniversity of Oxford Oxford United Kingdom
6. Royal Manchester Children's HospitalCentral Manchester University Hospitals National Health Service Foundation Trust Manchester United Kingdom
7. Department of Paediatric NeurologyRoyal Preston Hospital Preston United Kingdom
8. South West Thames Regional Genetics ServiceSt. George's Hospital London United Kingdom
9. Alder Hey Children's National Health Service Foundation Trust Liverpool United Kingdom
10. Greater Glasgow and Clyde National Health Service Yorkhill Hospital Glasgow United Kingdom
11. Greater Manchester Neuroscience CentreSalford Royal National Health Service Foundation Trust, Manchester Academic Health Science Centre Salford United Kingdom
12. Neurogenetics UnitNational Hospital for Neurology and Neurosurgery London United Kingdom
13. Department of Clinical NeurosciencesUniversity of Cambridge, Cambridge Biomedical Campus Cambridge United Kingdom
14. MRC Mitochondrial Biology UnitUniversity of Cambridge Cambridge United Kingdom
15. Department of PaediatricsThe Children's Hospital Oxford United Kingdom
16. Oxford Medical Genetics LaboratoriesOxford University Hospitals National Health Service Foundation Trust Oxford United Kingdom