1. Paediatric Pain and Palliative Care Service Department of Women's and Children's Health University Hospital Padua Italy
2. Department of Pediatric Emergency Regina Margherita Children's Hospital – A.O.U. Città della Salute e della Scienza di Torino Turin Italy
3. Pediatric Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan Italy
4. CREA Sanità ‐ University of Tor Vergata Rome Italy
5. Department of Clinical Sciences and Community Health Università degli Studi di Milano Milan Italy