1. Adams, L.M., Ethier, S.P., and Ullrich, R.L. Enhanced in vitro proliferation and in vivo tumorigenic potential of mammary epithelium from BALB/c mice exposed in vivo to gamma-radiation and/or 7, 12-dimethylbenz(a)anthracene. Cancer Res., 47:4425–4431, 1987.
2. Albanes, D. and Winick, M. Are cell number and cell proliferation risk factors for cancer? JNCI, 80:772–774, 1988.
3. Clifton, K.H. The physiology of endocrine therapy. In: F.F. Becker (ed.), Cancer, A Comprehensive Treatise, Vol. 5, pp. 573–597. New York, NY:Plenum Press, 1977.
4. Clifton, K.H. Cancer risk per clonogenic cell in vivo: Speculation on the relationship of both cancer incidence and latency to target cell number. In: K. Lapis and S. Eckhardt (eds.), Lectures and Symposia of the 14th International Cancer Congress, Carcinogenesis and Tumour Progression, Vol. 4, pp. 89–99. Basel: Karger, 1987.
5. Clifton, K.H. and Crowley, J. Effects of radiation type and role of glucocorticoids, gonadectomy and thyroidectomy in mammary tumor induction in MtT-grafted rats. Cancer Res., 38:1507–1513, 1978.