No abstract available
MeSH terms
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Ampicillin / analysis*
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Ampicillin / therapeutic use
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Aniline Compounds / pharmacology*
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Bronchitis / drug therapy
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Chronic Disease
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Expectorants / pharmacology
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Humans
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Oxytetracycline / analysis*
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Oxytetracycline / therapeutic use
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Penicillinase / analysis
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Sputum / analysis*
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Sputum / enzymology
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Toluene / pharmacology*
Substances
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Aniline Compounds
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Expectorants
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Toluene
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Ampicillin
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Penicillinase
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Oxytetracycline