1. Unit of Child Neurology and Psychiatry, Department of Human Pathology in Adult and Developmental Age “Gaetano Barresi,” University of Messina, Messina, Italy
2. Unit of Child Neurology and Psychiatry, Department of Woman-Child, OspedaliRiuniti, University of Foggia, Foggia, Italy
3. Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
4. Department of Life, Health and Environmental Sciences, Pediatric Clinic, Coppito, L'Aquila, Italy
5. Department of Pediatrics, University of L'Aquila, L'Aquila, Italy