No abstract available
MeSH terms
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Biomedical Research / organization & administration
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Delivery of Health Care / organization & administration
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Health Education / organization & administration
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Humans
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Public Health*
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Pulmonary Disease, Chronic Obstructive* / diagnosis
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Pulmonary Disease, Chronic Obstructive* / prevention & control
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Pulmonary Disease, Chronic Obstructive* / therapy