1. The University of Cambridge Metabolic Research Laboratories, Wellcome Trust-Medical Research Council (MRC) Institute of Metabolic Science, Cambridge CB2 0QQ, United Kingdom
2. The National Institute for Health Research, Cambridge Biomedical Research Centre, Cambridge CB2 0QQ, United Kingdom
3. MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Cambridge CB2 0QQ, United Kingdom
4. Wolfson Brain Imaging Centre, University of Cambridge School of Clinical Medicine, Cambridge Biomedical Campus, Cambridge CB2 0QQ, United Kingdom
5. National Institute for Health Research/Wellcome Trust Clinical Research Facility, Cambridge University Hospitals National Health Service Foundation Trust, Cambridge Biomedical Campus, Cambridge CB2 0QQ, United Kingdom
6. Université Paris Descartes, Sorbonne Paris Cité, Faculté de Médecine, 75270 Paris Cedex 06, France
7. Centre de Référence des Maladies Héréditaires du Métabolisme, Hôpital Necker, Assistance Publique-Hôpitaux de Paris, 75015 Paris, France
8. Institut Imagine, Institut National de la Sante et de la Recherche Médicale, Unité 1163, 75015 Paris, France
9. Department of Pediatric Medicine, Sidra Medical and Research Center, PO Box 26999, Doha, Qatar