1. Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Faculty of Medical Sciences Newcastle University Newcastle upon Tyne UK
2. NHS Highly Specialised Services for Rare Mitochondrial Disorders, Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust Newcastle upon Tyne UK
3. Institute of Human Genetics Technische Universität München München Germany
4. Institute of Neurogenomics, Helmholtz Zentrum München Neuherberg Germany
5. Wellcome Centre for Mitochondrial Research, Bioscience Institute, Faculty of Medical Sciences Newcastle University Newcastle upon Tyne UK