New non-invasive option for colon cancer screening

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by CBSNEWS

khou.com

Posted on March 19, 2014 at 5:27 PM

The Cologuard tests stool samples for abnormal DNA. The test was 92-percent effective at catching cancer, and 42-percent effective at finding pre-cancerous polyps. CBS News chief medical correspondent Dr. Jon LaPook explains.

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