1. This randomized controlled trial did not definitively demonstrate noninferiority between N95 respirators and medical masks in preventing coronavirus disease ...
1. Adding a mask recommendation to other public measures did not reduce the SARS-Cov-2 infection by more than 50%. 2. ...
1. In this randomized controlled trial among outpatient health care personnel, N95 respirators were similar to medical masks for preventing ...
1. In this randomized controlled trial among outpatient health care personnel, N95 respirators were similar to medical masks for preventing ...
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