No abstract available
MeSH terms
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Anti-Bacterial Agents / therapeutic use*
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Child
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Child, Preschool
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Drug Resistance, Microbial / genetics
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Humans
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Infant
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Microbial Sensitivity Tests
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Pediatrics
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Penicillin Resistance / genetics
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Pneumococcal Infections / drug therapy*
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Pneumococcal Infections / prevention & control
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Streptococcus pneumoniae / drug effects