No abstract available
Publication types
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Comparative Study
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Letter
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Observational Study
MeSH terms
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ABO Blood-Group System / genetics*
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Adult
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African Americans
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Age Distribution
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Aged
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Blood Grouping and Crossmatching
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COVID-19 / blood
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COVID-19 / ethnology*
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COVID-19 Nucleic Acid Testing
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Cohort Studies
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Continental Population Groups*
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Ethnic Groups*
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Female
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Hispanic Americans
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Humans
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Middle Aged
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Pregnancy
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Pregnancy Complications, Infectious / blood
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Pregnancy Complications, Infectious / ethnology
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Prenatal Diagnosis
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Retrospective Studies
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Rh-Hr Blood-Group System / genetics*
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Risk Factors
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SARS-CoV-2 / isolation & purification*
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United States / epidemiology
Substances
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ABO Blood-Group System
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Rh-Hr Blood-Group System