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Elizabeth Pratt

This undated combination provided by Hologic shows an image taken using conventional mammography, left, and an image using a 3D mammography, right, with a tumor circled that wasn’t visible on the first image. A large study that was published Tuesday, June 24, 2014, in the Journal of the American Medical Association found that adding breast screening with 3D imaging to conventional digital mammograms is slightly better at finding cancer than regular scans alone, with fewer false alarms. (AP Photo/Courtesy Hologic) (AP)

Should some women get mammograms at 30?

Elizabeth Pratt