No abstract available
Publication types
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Letter
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Research Support, Non-U.S. Gov't
MeSH terms
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Adolescent
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Brazil / epidemiology
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Child
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Child, Preschool
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Emergency Service, Hospital / statistics & numerical data
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Female
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Hospitalization / statistics & numerical data*
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Humans
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Infant
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Infant, Newborn
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Male
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Pneumonia / epidemiology*
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Retrospective Studies