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- Face masks considerably reduce Covid-19 cases in Germany https://www.pnas.org/content/early/2020/12/02/2015954117 129 comments
- Face Masks Considerably Reduce Covid-19 Cases in Germany https://www.iza.org/publications/dp/13319/face-masks-considerably-reduce-covid-19-cases-in-germany-a-synthetic-control-method-approach 33 comments
- Face Masks Considerably Reduce Covid-19 Cases in Germany [pdf] http://ftp.iza.org/dp13319.pdf 2 comments
- Face Masks Considerably Reduce COVID-19 Cases in Germany: A Synthetic Control Method Approach https://www.google.com/url?sa=t&source=web&rct=j&url=http://ftp.iza.org/dp13319.pdf&ved=2ahukewjapdt1idxqahwd8uakhydlcy8qfjaaegqiarab&usg=aovvaw3b8jxsblffnqdsxgiijdig 6 comments science
- Face masks considerably reduce COVID-19 cases in Germany - 20 days after becoming mandatory face masks have reduced the number of new infections by around 45%. Economic costs are close to zero compared to other public health measures. https://www.pnas.org/content/early/2020/12/02/2015954117 23 comments worldnews
- Face masks considerably reduce COVID-19 cases in Germany - 20 days after becoming mandatory face masks have reduced the number of new infections by around 45%. Economic costs are close to zero compared to other public health measures. https://www.pnas.org/content/early/2020/12/02/2015954117 128 comments worldnews
- Face masks considerably reduce COVID-19 cases in Germany - 20 days after becoming mandatory face masks have reduced the number of new infections by around 45%. Economic costs are close to zero compared to other public health measures. https://www.pnas.org/content/early/2020/12/02/2015954117 2335 comments science