No abstract available
MeSH terms
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Awareness
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Health Education
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Health Knowledge, Attitudes, Practice
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Humans
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Pulmonary Disease, Chronic Obstructive* / diagnosis
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Pulmonary Disease, Chronic Obstructive* / epidemiology
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Pulmonary Disease, Chronic Obstructive* / etiology
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Pulmonary Disease, Chronic Obstructive* / physiopathology
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Pulmonary Disease, Chronic Obstructive* / prevention & control
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Spirometry
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United States / epidemiology