Protective effect of mandatory face masks in the public—relevant variables with likely impact on outcome were not considered

Published on 2020-11-032022-10-29
Journal: Proceedings of the National Academy of Sciences of

[키워드] Face mask mandatory outcome variable

[저자] Günter Kampf

[Category] Coronavirus, MERS, SARS,

PMC URL [DOI] 10.1073/pnas.2012415117

[Article Type] 42

[Source] PMC

All Keywords
【제목키워드】 outcome, Face mask, variable, mandatory,