Although false alarms are not at all unusual when it comes to mammograms, they can cause women much anxiety. Doctors are thinking about ways to ease those fears. iStockphoto hide caption

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"It would be disingenuous of me not to suggest that the link between the ... recommendations and insurance coverage hasn't put an additional focus on our work," says Dr. Michael LeFevre. Courtesy of Michael LeFevre hide caption

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Courtesy of Michael LeFevre

The U.S. Preventive Services Task Force recommends mammograms every other year, while the American Cancer Society endorses annual scans. Kari Lehr/Image Zoo/Corbis hide caption

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Kari Lehr/Image Zoo/Corbis

Richard Harris discusses mammogram guidelines

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Catharine Becker of Fullerton, Calif., was diagnosed with stage 3 breast cancer at 43 despite having a clean mammogram. The mother of three didn't know she had dense breast tissue until after she was diagnosed. Heidi de Marco/Kaiser Health News hide caption

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Heidi de Marco/Kaiser Health News

Some researchers recommend starting mammogram screening at age 40, while others say age 50. Some doctors think screening should be based on a woman's overall risk for breast cancer, not just her age. Hero Images/Corbis hide caption

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Hero Images/Corbis

The Hidden Cost Of Mammograms: More Testing And Overtreatment

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Mammograms are a key screening tool for breast cancer. But critics say they're not good enough. Salih Dastan/iStockphoto hide caption

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Salih Dastan/iStockphoto

A woman is positioned for a traditional mammogram at Tufts Medical Center in Boston. Bizuayehu Tesfaye/AP hide caption

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Bizuayehu Tesfaye/AP

Mammography detects cancer, but debate rages over when and how often women should get screened. iStockphoto.com hide caption

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