. 2021 Sep 14;41(4):336–347. doi: 10.14639/0392-100X-N0766
Società Italiana di Otorinolaringoiatria e Chirurgia Cervico-Facciale, Rome, Italy
This is an open access article distributed in accordance with the CC-BY-NC-ND (Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International) license. The article can be used by giving appropriate credit and mentioning the license, but only for non-commercial purposes and only in the original version. For further information: https://creativecommons.org/licenses/by-nc-nd/4.0/deed.en