No abstract available
MeSH terms
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China / epidemiology
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Humans
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Periodicals as Topic / statistics & numerical data*
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Pulmonary Disease, Chronic Obstructive / epidemiology
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Pulmonary Disease, Chronic Obstructive / pathology
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Pulmonary Disease, Chronic Obstructive / therapy*
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Research / standards
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Research Design
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Tuberculosis / epidemiology
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Tuberculosis / therapy*