No abstract available
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adult
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Aged
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Female
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Humans
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Influenza Vaccines / administration & dosage*
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Influenza, Human / epidemiology
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Influenza, Human / prevention & control*
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Male
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Middle Aged
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Prevalence
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Pulmonary Disease, Chronic Obstructive*
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United States / epidemiology