Efficacy of face mask in preventing respiratory virus transmission: A systematic review and meta-analysis.
Travel Med Infect Dis. 2020 Jul-Aug;36:101751. doi: 10.1016/j.tmaid.2020.101751. Epub 2020 May 28.
Travel Med Infect Dis. 2020.
PMID: 32473312
Free PMC article.