1. Laboratory of Diagnosis and Therapy of Lysosomal Disorders, Department of Women's and Children's Health University of Padova Padova Italy
2. Fondazione Istituto di Ricerca Pediatrica Città della Speranza Padova Italy
3. King Faisal Specialist Hospital and Research Centre, Faculty of Medicine Alfaisal University Riyadh Saudi Arabia
4. Medical Genetics Service/HCPA, DR BRASIL Research Group/HCPA, and INAGEMP Porto Alegre Brazil
5. Department of Medical Genetics and Pediatrics National Taiwan University Hospital Taipei Taiwan
6. Department of Genetics/UFRGS Medical Genetics Service/HCPA, DR BRASIL Research Group/HCPA, and INAGEMP Porto Alegre Brazil
7. BioMarin Pharmaceutical Inc. Novato California USA
8. ARCHIMED Life Science GmbH Vienna Austria
9. Division of Genetics and Metabolism, Departments of Pediatrics and Medical Research MacKay Memorial Hospital Taipei Taiwan
10. Biochemical Diagnostic Laboratory Greenwood Genetic Center Greenwood South Carolina USA
11. Molecular and Cell Biology Laboratory, Pediatric Neurology Unit and Laboratories Meyer Children's Hospital Florence Italy
12. Department of Neurosciences, Psychology, Pharmacology and Child Health University of Florence Florence Italy