1 Humanitas University, Department of Biomedical Sciences, Via Rita Levi Montalcini 4, 20090 Pieve Emanuele, Milan, Italy; Otorhinolaryngology Unit, Humanitas Clinical and Research Center - IRCCS, Via Manzoni 56, 20089 Rozzano, MI, Italy. Electronic address: fabio_ferreli@yahoo.it.
2 Otorhinolaryngology Unit, Humanitas Clinical and Research Center - IRCCS, Via Manzoni 56, 20089 Rozzano, MI, Italy.
3 Humanitas University, Department of Biomedical Sciences, Via Rita Levi Montalcini 4, 20090 Pieve Emanuele, Milan, Italy; Department of Anesthesia and Intensive Care Medicine, Humanitas Clinical and Research Center - IRCCS, Via Manzoni 56, 20089 Rozzano, MI, Italy.
4 Department of Anesthesia and Intensive Care Medicine, Humanitas Clinical and Research Center - IRCCS, Via Manzoni 56, 20089 Rozzano, MI, Italy.
5 Humanitas University, Department of Biomedical Sciences, Via Rita Levi Montalcini 4, 20090 Pieve Emanuele, Milan, Italy; Otorhinolaryngology Unit, Humanitas Clinical and Research Center - IRCCS, Via Manzoni 56, 20089 Rozzano, MI, Italy.