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mikenov on Twitter: ch7.io/cbhl5$Fw A study published on Wednesday in the Annals of Internal Medicine designed to test the efficacy of face mask wearing … has shown that there is no statistical difference between the group wearing masks and the group that did not wear them.


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ch7.io/cbhl5$Fw

A study published on Wednesday in the Annals of Internal Medicine designed to test the efficacy of face mask wearing … has shown that there is no statistical difference between the group wearing masks and the group that did not wear them.


mikenov on Twitter