No abstract available
MeSH terms
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Humans
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Lung Neoplasms / epidemiology
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Lung Neoplasms / etiology*
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Pulmonary Disease, Chronic Obstructive / complications*
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Pulmonary Disease, Chronic Obstructive / epidemiology
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Pulmonary Disease, Chronic Obstructive / etiology
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Risk Factors
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Smoking / adverse effects