1. Division of Infantile Neuropsychiatry, Department of Pediatrics, University of Messina, Messina, Italy
2. Department of Pediatrics, University of Pavia, IRCCS San Matteo, Pavia, Italy
3. Faculty of Medicine and Surgery, University of Messina, Messina, Italy
4. Department of Pediatrics, Magna Graecia University, Catanzaro, Italy
5. Department of Pediatrics, University of Messina, Messina, Italy