No abstract available
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Confounding Factors, Epidemiologic
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Epidemiologic Methods*
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Heart Diseases / etiology*
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Humans
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Industry
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Neoplasms / etiology*
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Nicotiana
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Plants, Toxic
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Tobacco Smoke Pollution / adverse effects*
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United States