No abstract available
Publication types
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Clinical Trial
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Comparative Study
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Randomized Controlled Trial
MeSH terms
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Automobiles
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Colorectal Neoplasms / diagnosis
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Colorectal Neoplasms / prevention & control*
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Follow-Up Studies
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Health Education
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Health Promotion*
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Humans
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Mass Screening*
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Nutritional Physiological Phenomena*
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Occupational Health Services*
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Pilot Projects
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Sigmoidoscopy
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United States