1. Department of Pediatrics, IRCCS Istituto Giannina Gaslini, Genova, Italy
2. Department of Neuroscience, Rehabilitation, Ophtalmology, Genetics, Maternal and Child Health, University of Genova, Genova, Italy
3. Pediatric Neuroradiology Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
4. Epidemiology and Biostatistics Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
5. Cytogenetic and Molecular Genetics Laboratory, Istituto Auxologico Italiano, Milano, Italy
6. Department of Mother and Child, Neonatal Intensive Care Unit, IRCCS Istituto Giannina Gaslini, Italy