Rational use of face masks in the COVID-19 pandemic.
Lancet Respir Med. 2020 May;8(5):434-436. doi: 10.1016/S2213-2600(20)30134-X. Epub 2020 Mar 20.
Lancet Respir Med. 2020.
PMID: 32203710
Free PMC article.
No abstract available.