1. Metastasis of maternal cancer to the placenta and fetus;Potter;Cancer,1970
2. Malignancy during pregnancy;Nieminen;Acta Obstet Gynecol Scand,1970
3. Cancer and pregnancy;Donegan;CA Cancer J Clin,1983
4. Cancer statistics, 1995;Wingo;CA Cancer J Clin,1995
5. Advisory Committee on the Biological Effects of Ionizing Radiation. The Effects on Populations of Exposure to Low Levels of Ionizing Radiation 1980, National Research Council, National Academy of Sciences. National Academy Press, Washington, DC