Comparing colonoscopy, sigmoidoscopy and fecal occult blood test for colorectal cancer screening
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Study hypothesis: Comparisons of attendance, detection rates and acceptability of total colonoscopy, flexible sigmoidoscopy and fecal occult blood test (FOBT) as primary screening tests for colorectal cancer. Primary outcome(s): Attendance and detection rate to total colonoscopy, flexible sigmoidoscopy and FOBT as primary screening tests.
创建时间：
2002-10-15
