No abstract available
MeSH terms
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Animals
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Antioxidants / administration & dosage
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Antioxidants / metabolism*
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Colorectal Neoplasms / epidemiology
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Colorectal Neoplasms / genetics
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Colorectal Neoplasms / metabolism*
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Diet
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Folic Acid / administration & dosage
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Folic Acid / metabolism*
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Humans
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Polymorphism, Genetic*
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United States / epidemiology