1. Department of Metabolic Diseases, Dutch Fatty Acid Oxidation Expertise CenterWilhelmina Children's Hospital, University Medical Center Utrecht Utrecht The Netherlands
2. Laboratory Genetic Metabolic Diseases, Departments of Clinical Chemistry and PediatricsEmma Children's Hospital, Amsterdam UMC, University of Amsterdam Amsterdam The Netherlands
3. Department of Internal Medicine and Dermatology, DieteticsUniversity Medical Center Utrecht Utrecht The Netherlands
4. Department of Neurology and NeurosurgeryRudolf Magnus Institute of Neuroscience, Spieren voor Spieren Kindercentrum, University Medical Center Utrecht Utrecht The Netherlands
5. Department of Endocrinology and MetabolismAmsterdam UMC, University of Amsterdam Amsterdam The Netherlands
6. Section of Metabolic DiseasesBeatrix Children's Hospital, University Medical Center Groningen, University of Groningen Groningen The Netherlands
7. Center for Lysosomal and Metabolic Disorders, Department of PediatricsSophia Children's Hospital EMC Rotterdam The Netherlands
8. Department of PediatricsRadboud University Medical Center Nijmegen The Netherlands
9. Department of PediatricsAmsterdam UMC, Vrije Universiteit Amsterdam Amsterdam The Netherlands
10. Department of Pediatrics and Clinical GenomicsMaastricht University Medical Center Maastricht The Netherlands
11. Department of Medical Genetics, Section Metabolic DiagnosticsWilhelmina Children's Hospital, University Medical Center Utrecht Utrecht The Netherlands
12. Department of Internal MedicineRadboud University Medical Center Nijmegen The Netherlands
13. National Institute for Public Health and the Environment (RIVM)Reference Laboratory for Pre‐ and Neonatal Screening Bilthoven The Netherlands