1. Emergency Pediatric Department, Bambino Gesù Children’s Hospital, IRCCS, Italy
2. National Centre for Epidemiology, Surveillance, and Health Promotion, National Institute of Health, Italy
3. Chair of Pediatrics, NESMOS Department, Faculty of Medicine and Psychology, Sapienza University, c/o Sant’Andrea Hospital, Italy
4. Department of Pediatrics (DPUO), University of Rome Tor Vergata, Bambino Gesù Children's Hospital, IRCCS, Italy