1. Blum D . Pregnancy and cancer. Cancer.net. Available at: http://www.cancer.net/patient/Coping/Emotional+and+Physical+Matters/Sexual+and+Reproductive+Health/Pregnancy+and+Cancer. Accessed May 17, 2011.
2. Theriault R Gwyn K Hortobagyi G . Cancer and pregnancy. In: Kufe D Pollock R Weichselbaum R Bast Jr R Gansler T , eds. Cancer Medicine. 6th ed. Philadelphia, PA: B.C. Decker; 2003.
3. Breast cancer epidemiology;Kelsey;Cancer Res.,1988
4. Obstetrical deliveries associated with maternal malignancy in California, 1992 through 1997
5. First births to older mothers, 1970-86;Ventura;Am J Public Health.,1989