Diagnostic performance of flexible sigmoidoscopy combined with fecal immunochemical test in colorectal cancer screening: meta-analysis and modeling
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Once-only flexible sigmoidoscopy (FS), which reliably detects neoplasms in the distal colon and rectum but not in the proximal colon, has been shown to reduce incidence and mortality of distal colorectal cancer (CRC). Fecal immunochemical tests (FITs) detect t... ...
