No abstract available
MeSH terms
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Case-Control Studies
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Female
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Humans
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Male
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Matrix Metalloproteinase 9 / genetics*
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Polymorphism, Genetic
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Pulmonary Disease, Chronic Obstructive / etiology
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Pulmonary Disease, Chronic Obstructive / genetics*
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Risk Factors
Substances
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Matrix Metalloproteinase 9