No abstract available
MeSH terms
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Adult
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Betacoronavirus
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COVID-19
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COVID-19 Testing
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China
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Clinical Laboratory Techniques
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Coronavirus Infections / diagnosis*
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Female
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Humans
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Male
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Middle Aged
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Pandemics
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Pharynx / virology*
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Pneumonia, Viral / diagnosis*
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RNA, Viral / isolation & purification*
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SARS-CoV-2
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Sputum / virology*