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Study Questions Mammograms 'Overdiagnosis'03:56Download


New analysis in The New England Journal of Medicine finds mammography screenings overdiagnosed breast cancer about a third of the time. The study says that although mammograms have greatly increased the detection of cancer in its early stages, they haven't had much impact on reducing deaths from breast cancer. Renee Montagne talks with Dr. Len Lichtenfeld of the American Cancer Society about implications for screening.

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