No abstract available
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Bronchodilator Agents / therapeutic use*
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Community Health Services / organization & administration
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Humans
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Immunologic Factors / therapeutic use
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Practice Guidelines as Topic
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Practice Patterns, Physicians'*
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Primary Health Care / organization & administration*
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Pulmonary Disease, Chronic Obstructive / physiopathology
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Pulmonary Disease, Chronic Obstructive / therapy*
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Severity of Illness Index*
Substances
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Bronchodilator Agents
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Immunologic Factors