1. Department of Clinical and Experimental Medicine, Neurological Institute University of Pisa Pisa Italy
2. Department of Pediatric Clinical Epileptology, Sleep Disorders and Functional Neurology University Hospital of Lyon, Member of the ERN EpiCARE Lyon France
3. Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute AND National Institute for Health and Care Research (NIHR) Newcastle Biomedical Research Centre (BRC) Newcastle University Newcastle upon Tyne UK
4. NHS Highly Specialised Service for Rare Mitochondrial Disorders, Newcastle upon Tyne Hospitals NHS Foundation Trust Newcastle upon Tyne UK
5. Fondazione IRCCS Istituto Neurologico Carlo Besta Milan Italy
6. Reference Center for Inherited Metabolic Disorders MetabERN, Mitochondrial Disorders Research Group (imas12) ‘12 de Octubre’ University Hospital Madrid Spain
7. Research Unit of Neuromuscular Disease Translational Pediatrics and Clinical Genetics, Bambino Gesu’ Children's Research Hospital, IRCCS Rome Italy
8. IRCCS Istituto delle Scienze Neurologiche di Bologna, Full Member of the European Reference Network for Rare and Complex Epilepsies (EpiCARE) Bologna Italy
9. Department of Neuropathology, Functional Unit of Neuromuscular pathology and Department of Neuromyology, Institute of Myology, EURO‐NMD coordination, Pitié‐Salpêtrière Hospital APHP Sorbonne University Paris France
10. Epilepsy and Neurometabolics Units, Pediatric Neurology Department, Hospital Sant Joan de Déu Institut de Recerca Sant Joan de Déu Barcelona Spain
11. Department of Paediatrics and Adolescent Medicine, Haukeland University Hospital, Bergen and Department of Clinical Medicine (K1) University of Bergen Bergen Norway
12. Department of Clinical Neurosciences University of Cambridge Cambridge UK
13. Department of Neurology, Friedrich‐Baur‐Institute, LMU University Hospital Ludwig‐Maximilians‐Universität München Munich Germany
14. German Center for Neurodegenerative Diseases (DZNE) Munich Germany
15. Munich Cluster for Systems Neurology (SyNergy) Munich Germany
16. Department of Neurology, Section of Neuromuscular Diseases University Hospital Bonn Bonn Germany
17. Institute of Genomic Medicine and Rare Disorders Semmelweis University Budapest Hungary
18. Department of Neurology Haukeland University Hospital Bergen Norway
19. UCL Great Ormond Street Institute of Child Health London UK
20. Great Ormond Street Hospital for Children London UK
21. Reference Center for Mitochondrial Disorders (CARAMMEL) and Reference Center for Inborn Errors of Metabolism, Department of Pediatrics, Necker‐Enfants‐Malades Hospital, Assistance Publique‐Hôpitaux de Paris University of Paris‐Cité, MetabERN Paris France
22. INSERM UMRS_1163, Imagine Institute Paris France
23. Dipartimento di Neuroscienze, Organi di Senso e Torace Fondazione Policlinico Universitario Agostino Gemelli IRCCS Rome Italy
24. Dipartimento Di Neuroscienze Università Cattolica del Sacro Cuore Rome Italy
25. Saint John's Hospital, Child Epilepsy Centre Budapest Hungary