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Mammograms less crucial, Norway study finds
San Francisco Chronicle

Recent advances in breast cancer awareness and treatment have made routine mammography less crucial in detecting cancer and mitigated its value in reducing deaths, researchers reported Wednesday.

Although the World Health Organization and U.S. authorities have found previously that mammography reduces deaths from breast cancer by about 25 percent, the new study in the New England Journal of Medicine determined that the death rate dropped by only 10 percent after the introduction of routine mammography in Norway.