No abstract available
MeSH terms
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Adolescent
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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 A Virus, H1N1 Subtype*
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Influenza, Human* / epidemiology
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Influenza, Human* / therapy
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Length of Stay*
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Male
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Middle Aged
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Pneumonia, Viral / epidemiology
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Pneumonia, Viral / therapy
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Prospective Studies
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Young Adult