NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The members of the committee responsible for the report were chosen for their special competences and with regard for appropriate balance.

Support for this project was provided by The Breast Cancer Research Foundation, the Carl J. Herzog Foundation, Mr. John K. Castle, the Jewish Healthcare Foundation (Pittsburgh), the Josiah Macy, Jr., Foundation, the Kansas Health Foundation, and the New York Community Trust. The views presented in this Workshop Summary are those of the workshop speakers, and are not necessarily those of the Institute of Medicine Committee on the Early Detection of Breast Cancer or of the sponsors.

Additional copies of this Workshop Summary are available in limited quantities from the National Cancer Policy Board, 2101 Constitution Avenue, N.W., Washington, DC 20418; call (202) 334-1382. The full text of this summary is available on line at www.nap.edu.