No abstract available
MeSH terms
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Acute Disease
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Adolescent
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Anti-Bacterial Agents / therapeutic use
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Child
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Child, Preschool
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Colony Count, Microbial
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Gram-Negative Bacteria / isolation & purification*
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Gram-Positive Bacteria / isolation & purification*
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Humans
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Infant
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Otitis Media / diagnosis*
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Otitis Media / drug therapy
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Otitis Media / microbiology*
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Prospective Studies