1. Clinical Pathways and Epidemiology Unit, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
2. Department of Surgery and Surgical Oncology Unit, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
3. Department of Epidemiology, Lazio Regional Health Service, Rome, Italy
4. Health Management Department, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
5. Critical Care Department, Sant’Andrea Hospital, Sapienza University of Rome, Rome, Italy
6. Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy