1. Departments of Paediatrics and Adolescent Medicine; Centre for Inherited Metabolic Diseases; Copenhagen Denmark
2. ; Department of Clinical Genetics, Centre for Inherited Metabolic Diseases, Copenhagen University Hospital; Rigshospitalet; Copenhagen Denmark
3. ; Center for Genomic Medicine, Copenhagen University Hospital; Rigshospitalet; Copenhagen Denmark
4. ; Chiesi Farmaceutici S.p.A; Parma Italy
5. ; Unidad de Metabolismo e Investigación Pediátrica, Hospital Universitario Reina Sofía, IMIBIC; Universidad de Córdoba, CIBERObn; Córdoba Spain
6. ; Paediatric Neurology and Metabolism; Universitair Ziekenhuis; Brussels Belgium
7. Limoges Hospital; Limoges France
8. ; Centre Hospitalier de Saint-Quentin; Saint-Quentin France
9. ; Department of Medical Biochemistry and Immunology; University Hospital of Wales; Cardiff Wales UK
10. ; Department of Paediatric, Nutrition and Metabolic Diseases; The Children's Memorial Health Institute; Warsaw Poland
11. ; Hospital Central Cruz Roja; Madrid Spain
12. Medical Genetics Section, Hospital Clínico Universitario Virgen de la Arrixaca, IMIB-Arrixaca, CIBERER-ISCIII; Madrid Spain
13. ; Service de Neuropédiatrie, Centre de Référence des Maladies Lysosomales, and Sorbonne Université, GRC n°19, pathologies Congénitales du Cervelet-LeucoDystrophies, AP-HP, Hôpital Armand Trousseau; Paris F-75012 France
14. ; Zymenex A/S; Hillerød Denmark
15. ; International Center for Lysosomal Disorders; University Medical Center Hamburg-Eppendorf; Hamburg Germany
16. ; Evidera; Bethesda MD USA
17. ; Center for Lysosomal and Metabolic Diseases (department of Pediatrics); Erasmus MC University Medical Center - Sophia Children's Hospital; Rotterdam The Netherlands
18. ; Manchester Centre for Genomic Medicine; Central Manchester University Hospitals NHS Foundation Trust; Manchester UK
19. ; Center for Pediatric and Adolescent Medicine, Villa Metabolica; University Medical Center Mainz; Mainz Germany
20. ; UCSF Benioff Children's Hospital Oakland; Oakland CA USA
21. ; Centre de Référence des Maladies Héréditaires du Métabolisme; Hôpital Femme Mère Enfant; Lyon France