No abstract available
MeSH terms
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Ampicillin / pharmacology
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Animals
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Escherichia coli / drug effects
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Oxytetracycline / metabolism
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Penicillin Resistance*
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Poultry
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Salmonella typhimurium / drug effects
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Streptomycin / pharmacology
Substances
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Ampicillin
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Oxytetracycline
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Streptomycin