1. Pediatric Highly Intensive Care Unit, Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico,
Milan, Italy
2. Department of Otorhinolaryngology, University of Pavia, IRCCS Policlinico “S. Matteo” Foundation,
Pavia, Italy
3. Department of Statistics and Biometrics, University of Pavia, IRCCS Policlinico “S. Matteo” Foundation,
Pavia, Italy