No abstract available
MeSH terms
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Ampicillin / pharmacology*
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Anti-Bacterial Agents / pharmacology*
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Cephalosporins / pharmacology*
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Cephamycins / pharmacology*
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Haemophilus influenzae / drug effects*
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Microbial Sensitivity Tests
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Osmolar Concentration
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Penicillin Resistance
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Penicillins / pharmacology*
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beta-Lactamases / analysis
Substances
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Anti-Bacterial Agents
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Cephalosporins
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Cephamycins
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Penicillins
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Ampicillin
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beta-Lactamases