PT  - JOURNAL ARTICLE
AU  - Nicholas E Burr
AU  - Christopher J Black
TI  - What is the most appropriate respiratory protection against COVID-19?
AID  - 10.1136/bmjebm-2020-111441
DP  - 2020 Jul 14
TA  - BMJ Evidence-Based Medicine
PG  - bmjebm-2020-111441
4099  - http://ebm.bmj.com/content/early/2020/07/14/bmjebm-2020-111441.short
4100  - http://ebm.bmj.com/content/early/2020/07/14/bmjebm-2020-111441.full