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Homeby Witness Moecki
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Health 023

helices (30)in #cdc • 5 years ago

CDC 2019

1100 citations were winnowed to the 10 best for review.

masks looked ineffective.

https://twitter.com/boriquagato/status/1310595825865756673

2019_CDC_face-masks_EjAnbJsXYAAix2j.jpg

#face #masks #ineffective #randomized #controlled #trials #y2019
5 years ago in #cdc by helices (30)
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