1. Cancer Facts and Figures. American Cancer Society, New York.1989.
2. Williams, W.R., and Osborne, M.P. In: Breast Diseases. (Eds). J.R. Harris, S. Hellman, I.C. Henderson, and D.W.Kinne. J.B. Lippincott & Co. Philadelphia, 1987, pp 109–120.
3. Smith, R.E. Cancer Detect. Prevent. 10:193–196, 1987.
4. Kinlen, L.J. Prog. Lipid. Res. 25:527–531, 1986.
5. Gabor, H., Hillyard, L.A., and Abraham, S. J. Nat. Cancer Inst. 74:1299–1305, 1985.