No abstract available
MeSH terms
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Animals
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Antigens, Bacterial / immunology
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Bacterial Vaccines*
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Haemophilus influenzae / immunology
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Humans
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Moraxella catarrhalis / immunology
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Otitis Media / microbiology*
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Otitis Media / prevention & control*
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Streptococcus pneumoniae / immunology
Substances
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Antigens, Bacterial
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Bacterial Vaccines