No abstract available
MeSH terms
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Acute Disease
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Child
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Child, Preschool
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Cross Infection
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Female
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Hospitalization
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Humans
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Infant
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Infant, Newborn
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Influenza, Human / complications*
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Influenza, Human / pathology
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Male
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Respiratory Tract Diseases / etiology*
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Respiratory Tract Diseases / virology
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Retrospective Studies
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Severity of Illness Index