No abstract available
MeSH terms
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Anemia, Sickle Cell / complications*
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Bacterial Vaccines / immunology
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Child
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Child, Preschool
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Humans
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Penicillins / therapeutic use
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Pneumococcal Infections / etiology
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Pneumococcal Infections / prevention & control*
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Streptococcus pneumoniae / immunology
Substances
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Bacterial Vaccines
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Penicillins