No abstract available
MeSH terms
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Education, Professional / organization & administration
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Health Care Coalitions / organization & administration
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Health Education / organization & administration*
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Humans
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Mass Screening / organization & administration
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Pulmonary Disease, Chronic Obstructive / diagnosis*
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Pulmonary Disease, Chronic Obstructive / etiology
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Respiratory Therapy / methods
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Respiratory Therapy / standards*
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Smoking / adverse effects
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Spirometry / instrumentation
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Spirometry / standards*
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United States