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. 2020 Sep 24;40(5):325–331. doi: 10.14639/0392-100X-N0832

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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

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Figure 1. — Representation of the response rate to our questionnaire sorted by region. The total number of responses is reported on the abscissa axis, while the ordinate axis indicates the 20 Italian regions.