No abstract available
Publication types
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Comparative Study
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English Abstract
MeSH terms
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Adult
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Bronchitis / diagnosis
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Bronchitis / physiopathology*
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Chronic Disease
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Female
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Follow-Up Studies
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Forced Expiratory Volume
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Humans
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Lung / physiopathology*
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Male
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Middle Aged
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Poland
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Prospective Studies
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Urban Population