Karen Lindsfor, a professor of radiology and chief of breast imaging at the University of California, Davis Medical Center, examines the mammogram of a patient with heterogeneously dense breast tissue. Lindfors is among those doctors who say there was insufficient evidence to support the idea that additional screenings would detect cancers earlier. Rich Pedroncelli/AP hide caption

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Studies Reignite Mammography Debate For Middle-Aged Women

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How Buffett's Cancer Is Shaping National Dialogue

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A New Stage Play Tackles Athletes And Head Injuries

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The Colorado Coalition for the Homeless runs the Stout Street Clinic in Denver, helped Dale Miller get a CT scan. Colorado Coalition for the Homeless hide caption

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Colorado Extends Medicaid To Some Adults Without Kids

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Staying fit and eating well can help cancer survivors, too, a review of the latest evidence shows. Lucy Pemoni/AP hide caption

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Carrying 'Dreams': Why Women Become Surrogates

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