A much-touted, widely used stool-screening test is an ineffective, unreliable method for detecting colon cancer, researchers at the Mayo Clinic say. In a study involving more than 13,000 patients, ...
To the Editor: Mandel and associates (Nov. 30 issue) 1 show that either annual or biennial fecal occult-blood testing significantly reduces the incidence of colorectal cancer. Their findings were ...
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