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Parece que dizem por aí que falta evidência científica para o uso de máscaras. Aqui fica para os cépticos.
https://www.researchgate.net/…/340603522_Face_Masks_Against…
“The science around the use of masks by the general public to impede COVID-19 transmission is advancing rapidly. Policymakers need guidance on how masks should be used by the general population to combat the COVID-19 pandemic. Here, we synthesize the relevant literature to inform multiple areas: 1) transmission…
PDF | The science around the use of masks by the general public to impede COVID-19 transmission is advancing rapidly. Policymakers need guidance on how… | Find, read and cite all the research you need on ResearchGate
RESEARCHGATE.NET
PDF | The science around the use of masks by the general public to impede COVID-19 transmission is advancing rapidly. Policymakers need guidance on how… | Find, read and cite all the research you need on ResearchGate