1. Department of Child and Experimental Medicine, Section of Paediatrics and Child Neuropsychiatry, University of Catania, Italy
2. National Council of Research, Institute for Biomedical Research and Innovation (IRIB), Unit of Catania, Italy
3. Unit of Pediatrics and Pediatric Emergency, University Hospital Policlinico “G. Rodolico-San Marco,” Catania, Italy
4. Neonatal Intensive Care Unit, San Marco Hospital, University Hospital Policlinico “G. Rodolico-San Marco,” Catania, Italy