1. Co wie, A. T. 1974. Overview of the mammary gland. J. Invest. Dermatol. 63:2.
2. Dabelow, A. 1957. Die Milchdrüse. In Handbuch der mikroskopischen Anatomie des Menschen, Vol. III/3. Berlin: Springer-Verlag OHG, p. 277.
3. Fanger, H., and Ree, H. J. 1974. Cyclic changes of human mammary gland epithelium in relation to the menstrual cycle. An ultrastructural study. Cancer 34:574.
4. Hems, G. 1978. The contributions of diet and childbearing to breast-cancer rates. Br. J. Cancer 37:974.
5. Wellings, S. R. 1980. Development of human breast cancer. Adv. Cancer Res. 31:287.