No abstract available
MeSH terms
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Air Filters / adverse effects*
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Anesthesia, General / adverse effects*
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Anesthesia, General / instrumentation
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Betacoronavirus*
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COVID-19
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Coronavirus Infections / prevention & control*
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Coronavirus Infections / transmission
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Emergency Medical Services / methods*
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Humans
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Hypercapnia / diagnosis
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Hypercapnia / etiology
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Pandemics / prevention & control*
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Pneumonia, Viral / prevention & control*
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Pneumonia, Viral / transmission
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Risk Factors
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SARS-CoV-2
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Time Factors