No abstract available
MeSH terms
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Colonoscopy / economics
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Colonoscopy / methods
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Colorectal Neoplasms / diagnosis*
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Colorectal Neoplasms / economics
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Cost-Benefit Analysis*
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Humans
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Mass Screening / economics*
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Mass Screening / methods*
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Occult Blood*
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Sigmoidoscopy / economics
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Sigmoidoscopy / methods*