RT @NateSilver538: Very cool to see an actual randomized control trial on mask- wearing, which finds positive effects. https://t.co/OII0iVW… 0 atbildes
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Aigars Mahinovs (2021-09-01 16:27:22) |
RT @NateSilver538: Very cool to see an actual randomized control trial on mask- wearing, which finds positive effects. https://t.co/OII0iVW… | |