Stefania Franzini1, Emanuela Paradiso1, Claudia Casiraghi1, Stefano Scalia Catenacci1, Giuseppe Sofi1, Ernesto Leva2
1Anesthesia and Pediatric Intensive Care Unit and 2Department of Pediatric Surgery, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milan, Italy.