RT Journal Article
SR Electronic
T1 What is the most appropriate respiratory protection against COVID-19?
JF BMJ Evidence-Based Medicine
JO BMJ EBM
FD BMJ Publishing Group Ltd
SP bmjebm-2020-111441
DO 10.1136/bmjebm-2020-111441
A1 Nicholas E Burr
A1 Christopher J Black
YR 2020
UL http://ebm.bmj.com/content/early/2020/07/14/bmjebm-2020-111441.abstract
AB