Hydrating the Respiratory Tract: An Alternative Explanation Why Masks Lower Severity of COVID-19 Disease.
medRxiv. 2020 Dec 26:2020.12.23.20248671. doi: 10.1101/2020.12.23.20248671. Preprint.
medRxiv. 2020.
PMID: 33398291
Free PMC article.
Updated.