No abstract available
MeSH terms
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Aged
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Aged, 80 and over
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Ampicillin / therapeutic use
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Ampicillin Resistance*
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Bacteremia / drug therapy*
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Fatal Outcome
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Female
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Humans
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Meningococcal Infections / drug therapy*
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Neisseria meningitidis / drug effects*
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Penicillin Resistance*
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Penicillins / therapeutic use