1. Unit of Pediatric Emergency, Department of Human Pathology of the Adult and Developmental Age “Gaetano Barresi,” University of Messina, Messina, Italy
2. Department of Pediatrics, University of L'Aquila, L'Aquila, Italy
3. Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
4. Department of Life, Health and Environmental Sciences, Pediatric Clinic, Coppito (AQ), Italy
5. Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom.
6. Department of Pediatrics, Cinquefrondi (RC), Italy
7. Pediatrics Clinic, ASST-Spedali Civili of Brescia, Brescia, Italy