No abstract available
Publication types
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Clinical Trial
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Controlled Clinical Trial
MeSH terms
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Acetylcysteine / administration & dosage*
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Aged
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Bronchitis / drug therapy*
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Clinical Trials as Topic
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Humans
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Isoproterenol / administration & dosage*
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Male
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Middle Aged
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Placebos
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Positive-Pressure Respiration
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Sputum / analysis
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Viscosity
Substances
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Placebos
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Isoproterenol
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Acetylcysteine