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. 2021 Apr 22:1–10. doi: 10.1017/S0022215121001110

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© The Author(s) 2021

This article is made available via the PMC Open Access Subset for unrestricted re-use and analyses in any form or by any means subject to acknowledgement of the original source. These permissions are granted for the duration of the COVID-19 pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

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Fig. 2. — The receiver operating characteristic curve to assess the efficacy of using the time passed from the onset of smell loss to predict the probability of not regaining complete recovery.