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Amedeo Smart
Independent Medical Education
Wang X, Ferro EG, Zhou G, Hashimoto D, et al. Association Between Universal Masking in a Health Care System and SARS-CoV-2 Positivity Among Health Care Workers. JAMA 2020 Jul 14. pii: 2768533. doi: 10.1001/jama.2020.12897.PMID: 32663246
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