No abstract available
MeSH terms
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Adult
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Age Factors
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Aged
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Colonic Neoplasms / epidemiology*
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Emigration and Immigration
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Female
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Humans
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Intestinal Polyps / epidemiology
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Male
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Middle Aged
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Rectal Neoplasms / epidemiology*
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Registries
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Sex Factors
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Sigmoid Neoplasms / epidemiology