NEW ENGLAND JOURNAL OF MEDICINE: MAY 21, 2020 “We know that wearing a mask outside health care facilities offers little, IF ANY, protection from infection.” https://www.nejm.org/doi/full/10.1056/NEJMp2006372
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NEW ENGLAND JOURNAL OF MEDICINE: MAY 21, 2020 “We know that wearing a mask outside health care facilities offers little, IF ANY, protection from infection.” https://www.nejm.org/doi/full/10.1056/NEJMp2006372
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