1. Pediatric Pain and Palliative Care Service; Department of Women's and Children's Health; University Hospital; Padova Italy
2. S.C. Pediatria d'Urgenza - A.O.U. Città della Salute e della Scienza di Torino- Ospedale Infantile Regina Margherita Children's Hospital; Torino Italy
3. Institute for Maternal and Child Health (IRCCS) Burlo Garofolo; Trieste Italy
4. Emergency Unit; Department of Pediatrics; University Hospital; Verona Italy
5. Department of Emergency Medicine; Anna Meyer Children's University Hospital; Firenze Italy
6. CREA Sanità - University of Tor Vergata; Rome Italy