Affiliation: | 1. Department of Biomedical and Clinical Sciences “L. Sacco,”, University of Milan, Milan, Italy;2. Department of Otorhinolaryngology, Ospedale San Luigi Gonzaga, University of Turin, Italy;3. Department of Otorhinolaryngology, Ospedale Martini, Turin, Italy;4. Department of Otorhinolaryngology, Ospedale Civile of Vittorio Veneto, Belluno, Italy;5. Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy |