1. Department of Neuroscience, Psychology, Pharmacology and Child Health, University of Florence, 50135 Florence, Italy
2. Department of Translational Research on New Technologies in Medicine and Surgery, University of Pisa, 56123 Pisa, Italy
3. National Centre of Services and Research for Prevention of Blindness and Rehabilitation of Visually Impaired, Rome, Italy
4. Department of Pediatrics, Catholic University of the Sacred Heart, Rome, Italy
5. Division of Pediatrics, Versilia Hospital, Italy
6. Department of Developmental Neuroscience, IRCCS Fondazione Stella Maris, 56128 Calambrone, Pisa, Italy