1. Department of Paediatrics and Adolescent Medicine; Centre for Inherited Metabolic Diseases; Copenhagen Denmark
2. ; Center for Genomic Medicine; Copenhagen University Hospital; Rigshospitalet Copenhagen Denmark
3. ; Department of Clinical Genetics, Centre for Inherited Metabolic Diseases; Copenhagen University Hospital; Rigshospitalet Copenhagen Denmark
4. ; Centre de Référence des Maladies Héréditaires du Métabolisme; Hôpital Femme Mère Enfant; Lyon France
5. ; Center for Pediatric and Adolescent Medicine; University Medical Center Mainz; Villa Metabolica Mainz Germany
6. ; Paediatric Neurology and Metabolism; Universitair Ziekenhuis; Brussel Belgium
7. ; Unidad de Metabolismo e Investigación Pediátrica, Hospital Universitario Reina Sofía, IMIBIC; Universidad de Córdoba, CIBERObn; Córdoba Spain
8. Department of Pediatric Neurology, Reference Center for Lysosomal Diseases; Trousseau Hospital, APHP, and GRC ConCer-LD, Sorbonne Universities, UPMC University 06; Paris France
9. ; Chiesi Farmaceutici S.p.A; Parma Italy
10. ; Zymenex A/S; Hillerød Denmark
11. ; Center for Lysosomal and Metabolic Diseases (Department of Pediatrics); Erasmus MC University Medical Center - Sophia Children's Hospital; Rotterdam The Netherlands
12. ; Institute of Human Genetics; University Medical Center; Mainz Germany
13. ; Manchester Centre for Genomic Medicine; Central Manchester University Hospitals NHS Foundation Trust; Manchester UK
14. ; Department of Paediatric, Nutrition and Metabolic Diseases; The Children's Memorial Health Institute; Warsaw Poland
15. ; Department of Occupational Therapy and Physiotherapy; Copenhagen University Hospital; Rigshospitalet Copenhagen Denmark