Making sense of the mammography controversy : what women need to know : joint hearing before the Subcommittee on Public Health of the Committee on Health, Education, Labor, and Pensions, United States Senate and the Subcommittee on Labor, Health, and Human Services, and Education of the Committee on Appropriations, United States Senate, One Hundred Seventh Congress, second session, on examining the conflicting findings regarding mammography usage and update recommendation guidelines, based on the most current scientific data, on the use of mammography in breast cancer detection, February 28, 2002.