No abstract available
MeSH terms
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Aged
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Aged, 80 and over
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Colonoscopy
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Colorectal Neoplasms / diagnosis*
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Colorectal Neoplasms / etiology
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Colorectal Neoplasms / prevention & control
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Female
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Humans
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Male
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Mass Screening*
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Middle Aged
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Occult Blood
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Risk Factors
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Time Factors