No abstract available
Publication types
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Clinical Trial
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Comment
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Editorial
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Randomized Controlled Trial
MeSH terms
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Aged
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Bacterial Vaccines*
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Humans
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Pneumococcal Vaccines
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Pneumonia, Pneumococcal / prevention & control
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Prospective Studies
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Streptococcus pneumoniae / immunology*
Substances
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Bacterial Vaccines
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Pneumococcal Vaccines