No abstract available
Publication types
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Clinical Trial
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Comparative Study
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Controlled Clinical Trial
MeSH terms
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Adult
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Aged
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Asthma / drug therapy
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Bronchitis / drug therapy
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Chronic Disease
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Clinical Trials as Topic
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Female
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Guaifenesin / therapeutic use*
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Humans
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Lung Diseases, Obstructive / drug therapy*
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Male
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Middle Aged
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Terbutaline / therapeutic use*
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Time Factors