No abstract available
Publication types
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Adult
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Aged
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Aged, 80 and over
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Asbestos / adverse effects*
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Colorectal Neoplasms / etiology*
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Environmental Exposure*
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Humans
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Middle Aged
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Polyps / etiology*