No abstract available
MeSH terms
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Carcinogens / adverse effects
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Confounding Factors, Epidemiologic
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Female
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Humans
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Male
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Meta-Analysis as Topic
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Pulmonary Disease, Chronic Obstructive / etiology
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Risk Factors
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Socioeconomic Factors
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Tobacco Smoke Pollution / adverse effects*
Substances
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Carcinogens
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Tobacco Smoke Pollution