No abstract available
MeSH terms
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Adult
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Aged
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Calcium / analysis
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Copper / analysis*
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Female
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Humans
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Logistic Models
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Male
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Manganese / analysis
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Middle Aged
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Rectal Neoplasms / chemistry*
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Rectal Neoplasms / etiology*
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Spectrophotometry, Atomic
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Zinc / analysis*
Substances
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Manganese
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Copper
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Zinc
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Calcium