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The claim: Face masks drastically reduce oxygen intake, cause carbon dioxide toxicity As states are reopening, health guidelines recommend that people maintain social distancing, practice hand-washing
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圖片版權 Getty Images Image caption 疫情爆發時,亞洲人戴口罩的比率較高。
Citation: Chu DK, Akl EA, Duda S, et al. Physical distancing, face masks, and eye protection to prevent person-to-person transmission of SARS-CoV-2 and COVID-19: a systematic review and meta-analysis.