No abstract available
Publication types
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Comment
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Letter
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Research Support, Non-U.S. Gov't
MeSH terms
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Humans
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Lung Diseases / etiology
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Lung Diseases / mortality*
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Lung Neoplasms / etiology
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Lung Neoplasms / mortality
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Male
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Middle Aged
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Mouth Neoplasms / etiology
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Mouth Neoplasms / mortality*
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Tobacco, Smokeless / adverse effects*