1. Aamdal, S., Bormer, O., Jorgensen, O., Host, H., Eliassen, G., Kaalhus, O., and Pihl, A., 1984, Estrogen receptors and long-term prognosis in breast cancer, Cancer
53: 2525–2529.
2. Abercrombie, A., and Ambrose, E. J., 1962, The surface properties of cancer cells: A review, Cancer Res. 22: 525–548.
3. Anderson, D. E., 1973, A high risk group for breast cancer, Cancer Bull. 2: 23–25.
4. Arafah, B. M., Finegan, H. M., Roe, J., Manni, A., and Pearson, O. H., 1982, Hormone dependency in N-nitrosomethylurea-induced rat mammary tumors, Endocrinology
111: 584–588.
5. Armstrong, B., and Doll, R., 1975, Environmental factors and cancer incidence and mortality in different countries, with special reference to dietary practices, Int. J. Cancer
15: 617–631.