No abstract available
MeSH terms
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Acute Disease
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Adolescent
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Adult
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Age Factors
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Child
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Child, Preschool
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Educational Status
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Family Characteristics
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Female
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Fever / complications
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Humans
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Infant
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Male
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Michigan
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Middle Aged
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Population Surveillance
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Respiratory Tract Infections / diagnosis
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Respiratory Tract Infections / epidemiology*
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Respiratory Tract Infections / microbiology
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Socioeconomic Factors
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Specimen Handling