1. Division of Inborn Errors of Metabolism; Department of Biochemistry and Molecular Genetics; Hospital Clinic; Barcelona Spain
2. Center for Biomedical Research on Rare Diseases CIBERER U737; Barcelona Spain
3. Unit of Clinical Genetics; Service of Pediatrics; University Hospital “Lozano Blesa”; Zaragoza Spain
4. Functional Genomics; Department Pediatrics; University of Zaragoza Medical School; Zaragoza Spain
5. Center for Biomedical Research on Rare Diseases CIBERER-GCV02; Zaragoza Spain
6. Clinical Genetics Unit; Institute of Medical and Molecular Genetics (INGEMM); IdiPAZ; Hospital Universitario La Paz; Madrid Spain
7. Center for Biomedical Research on Rare Diseases CIBERER U753; Madrid Spain
8. Department of Romance Languages; University of Pennsylvania; 521 Williams Hall 255 S. 36th Street Philadelphia Pennsylvania 19104
9. Genetics Unit; Department of Experimental and Health Sciences; Pompeu Fabra University (UPF); Barcelona Spain
10. Hospital del Mar Research Institute (IMIM); Barcelona Spain
11. Center for Biomedical Research on Rare Diseases CIBERER U735; Barcelona Spain
12. Neurometabolic Diseases Laboratory; Institute of Neuropathology; IDIBELL; Barcelona Spain
13. Center for Biomedical Research on Rare Diseases CIBERER U759; Barcelona Spain
14. Catalan Institution of Research and Advanced Studies (ICREA); Barcelona Spain