1. Neurology Clinic Department ‘G.F. Ingrassia’ Section of Neurosciences University of Catania CataniaItaly
2. Child Neuropsychiatry Department of Clinical and Experimental Medicine University of Catania CataniaItaly
3. Regional Referral Center for Inborn Errors Metabolism Pediatric Clinic Department of Clinical and Experimental Medicine University of Catania CataniaItaly
4. Institute for Polymers Composites and Biomaterials CNR CataniaItaly
5. Division of Metabolism Bambino Gesù Children's Hospital IRCCS Rome Italy
6. Parkinson's Disease Center and Movement Disorder Clinic Department of Neurology Baylor College of Medicine Houston TX USA