No abstract available
MeSH terms
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Animals
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Anti-Bacterial Agents / therapeutic use
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Chemistry, Pharmaceutical
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Humans
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Otitis Media / immunology
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Otitis Media / prevention & control
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Pneumococcal Infections / drug therapy*
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Pneumococcal Infections / epidemiology
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Pneumococcal Infections / immunology
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Pneumococcal Infections / microbiology
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Pneumococcal Vaccines / immunology
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Pneumococcal Vaccines / therapeutic use*
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Polysaccharides / immunology
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Spain / epidemiology
Substances
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Anti-Bacterial Agents
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Pneumococcal Vaccines
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Polysaccharides