1. Clinical Pediatrics, Department of Molecular Medicine and Development, University of Siena, Azienda Ospedaliero-Universitaria Senese, 53100 Siena, Italy
2. Pediatric Neurology, Department of Pediatrics, Santa Chiara Hospital, Azienda Ospedaliero Universitaria Pisana, 56126 Pisa, Italy
3. Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, 16132 Genoa, Italy