1. Pediatric Neurology, Department of Human and Child Health and Public Health, Child Health Area Catholic University UCSC Rome Italy
2. National Centre of Services and Research for the Prevention of Blindness and Visual Rehabilitation of Visually Impaired Rome Italy
3. Division of Metabolism IRCCS Ospedale Pediatrico Bambino Gesù Rome Italy
4. Unit of Metabolic and Muscular Diseases A. Meyer Children Hospital Florence Italy
5. Department of Clinical and Experimental Medicine University of Pisa Pisa Italy
6. IRCCS Fondazione Stella Maris Pisa Italy
7. Nemo Clinical Centre, Policlinico Gemelli Foundation IRCCS Rome Italy