A single examination of the lower colon and rectum using sigmoidoscopy, between the ages of 55 and 64 years, reduced colorectal cancer mortality by 43% in those screened and incidence by one third.
Fecal occult-blood testing and sigmoidoscopy have been recommended for screening for colorectal cancer, but the sensitivity of such combined testing for detecting neoplasia is uncertain. At 13 ...
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