No abstract available
MeSH terms
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Animals
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Anti-Bacterial Agents / pharmacology*
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Bacteria / drug effects*
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Bacteria / enzymology
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Bacteria / genetics
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Endocarditis, Bacterial / drug therapy
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Humans
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Lactams
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Microbial Sensitivity Tests
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Mutation
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Penicillin Resistance*
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Penicillins / pharmacology
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Penicillins / therapeutic use
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Rabbits
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Staphylococcal Infections / drug therapy
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Staphylococcus aureus / drug effects
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Streptococcal Infections / drug therapy
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Streptococcus sanguis / drug effects
Substances
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Anti-Bacterial Agents
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Lactams
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Penicillins