The active ingredient in Propecia, a baldness remedy approved by the Food and Drug Administration in 1997, is showing new promise as a way to prevent some prostate cancers. AP hide caption

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Evidence Supports Pill To Prevent Some Prostate Cancers
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Sally O'Neill decided to have a double mastectomy rather than "do a wait-and-see." Richard Knox/NPR hide caption

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When Treating Abnormal Breast Cells, Sometimes Less Is More
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A billboard advertising robotic surgery hangs outside Boston's Fenway Park in 2009. Hospitals and doctors have heavily promoted robotic surgery. Charles Krupa/AP hide caption

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Terry Dyroff, of Silver Spring, Md., had a PSA blood test that led to a prostate biopsy. The biopsy found no cancer but did give him a life-threatening infection. Jose Luis Magana/AP hide caption

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Radiation therapist Jean Etienne holds a range compensator, which shapes the depth to which the proton beam enters a patient's body to target a tumor. Rebecca Davis/NPR hide caption

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Pricey Prostate Cancer Therapy Raises Questions About Safety, Cost
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With PSA Testing, The Power Of Anecdote Often Trumps Statistics
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Terry Dyroff, at home in Silver Spring, Md., got a PSA blood test that led to a prostate biopsy. The biopsy found no cancer, but it gave him a life-threatening infection. Jose Luis Magana/AP hide caption

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All Routine PSA Tests For Prostate Cancer Should End, Task Force Says
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The problem of breast cancer overdiagnosis with mammograms is similar to the dilemma faced by men diagnosed with prostate cancer because of a PSA test. Damian Dovarganes/AP hide caption

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Former House Speaker Newt Gingrich makes a point during the presidential debate sponsored at Dartmouth College in Hanover, New Hampshire, Tuesday night.

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