1. Current Popul;Dalaker,1998
2. editors. SEER Cancer Statistics Review, 1973- 1994. Bethesda (MD): National Cancer Institute; 1997 NIH Pub. No. 97-2789.
3. et al., editors. Racial/ethnic patterns of cancer in the United States 1988- 1992. Bethesda (MD): National Cancer Institute; 1996 NIH Pub. No. 96-4104.
4. National Center for Health Statistics. BRFSS Database. Atlanta: Centers for Disease Control, 1997.
5. Influence of patient characteristics, socioeconomic factors, geography, and systemic risk on the use of breast-sparing treatment in women enrolled in adjuvant breast cancer studies: an analysis of two intergroup trials.