Retooling Pap test to spot more kinds of cancer

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In this photo taken by AP Images for the College of American Pathologists-See, Test and Treat, Nora Laver, MD, FCAP, right, explains a Pap test slide to Ying Pu at the CAP See, Test and Treat event, Saturday, Oct. 23, 2010, at Tufts Medical Center in Boston. (Bizuayehu Tesfaye/AP) Photo by