1. Neonatal Intensive Care Unit, Maternal and Neonatal Department, IRCCS Istituto Giannina Gaslini, Genoa, Italy.
2. Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), and University of Genoa, Genoa, Italy.
3. Epidemiology and Biostatistic Unit, Scientific Direction, and IRCCS Istituto Giannina Gaslini, Genoa, Italy.
4. Neuroradiology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy.
5. Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy.