1. Institute of Human Genetics; Technische Universität München; 81675 Munich Germany
2. Institute of Human Genetics; Helmholtz Zentrum München; German Research Center for Environmental Health; 85764 Neuherberg Germany
3. Institute of Clinical Chemistry and University Children's Hospital; University of Bern; 3010 Bern Switzerland
4. Department of Metabolism; Chiba Children's Hospital; Chiba 266-0007 Japan
5. Division of Human Genetics; Department of Pediatrics; University of Bern; 3010 Bern Switzerland
6. Divisions of Inherited Metabolic Disease and Neuropediatrics; Department of General Pediatrics; University Hospital Heidelberg; D-69120 Heidelberg Germany
7. Department of Pediatrics; Nijmegen Center for Mitochondrial Disorders; Radboud University Center; 6525 GA Nijmegen The Netherlands
8. Department of Neuropediatrics and NeuroCure Clinical Research Center; Charité Universitätsmedizin Berlin; 13353 Berlin Germany
9. Department of Pediatrics; Birmingham Children's Hospital; Birmingham B4 6NH United Kingdom
10. Department of Neurology; Friedrich-Baur-Institute; Ludwig-Maximilians-University; 80336 Munich Germany
11. Department of Pediatrics; Klinikum Reutlingen; 72764 Reutlingen Germany
12. Department of Pediatrics; Faculty of Medicine; Saitama Medical University; Saitama 350-0495 Japan
13. Division of Translational Research; Research Center for Genomic Medicine; Saitama Medical University; Saitama 350-1241 Japan
14. Division of Functional Genomics & Systems Medicine; Research Center for Genomic Medicine; Saitama Medical University; Saitama 350-1241 Japan
15. Max-Planck-Institute for Molecular Genetics; Otto-Warburg Laboratory; 14195 Berlin Germany
16. Wellcome Trust Sanger Institute; Hinxton Cambridge CB10 1SA United Kingdom
17. Department of Neuropediatrics; Children's Hospital of Eastern Switzerland St.Gallen; 9006 St. Gallen Switzerland
18. Institute of Human Genetics; University of Bonn; 53127 Bonn Germany
19. Institut für Humangenetik; Universitätsklinikum Essen, Universität Duisburg-Essen; 45122 Essen Germany
20. Wellcome Trust Centre for Mitochondrial Research; Institute of Neuroscience; The Medical School; Newcastle University; Newcastle upon Tyne NE2 4HH United Kingdom
21. Department of Pediatrics; Friedrich-Alexander-University of Erlangen-Nürnberg; 91054 Erlangen Germany
22. Department of Pediatrics; Paracelsus Medical University Salzburg; 5020 Salzburg Austria
23. Munich Cluster for Systems Neurology (SyNergy); 80336 Munich Germany
24. DZNE - German Center for Neurodegenerative Diseases; 80336 Munich Germany