No abstract available
MeSH terms
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Animals
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Antibodies, Bacterial / immunology
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Bacterial Vaccines / immunology*
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Chinchilla
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Evaluation Studies as Topic
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Fimbriae, Bacterial / immunology*
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Haemophilus influenzae / immunology*
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Immunization, Passive
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Otitis Media / prevention & control*
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Random Allocation
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Vaccination
Substances
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Antibodies, Bacterial
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Bacterial Vaccines