155
Greenwald, Peter, 1996. Chemoprevention of Cancer. Scientific American, Special Issue, What you need to know about Cancer, September, 275, 3, 96–99.
156
Kurzer, M. S. and Xu, X., 1999. Dietary Phytoestrogens. Annual Reviews of Nutrition, Vol. 17, pp. 353–381.
157
Shurtleff, William and Aoyagi, Akiko, 1975. The Book: of Tofu. Autumn Press Inc.
158
Kurzer, M. S. and Xu, X., 1999, Dietary Phytoestrogens. Annual Reviews of Nutrition Vol. 17, pp. 353–381.
159
UK Ministry of Agriculture, Fisheries and Food advice as reported in the Sunday Times, 1999.
160
Willet W. C., 1994. Micronutrients and cancer risk. Am. J. Clin. Nutr., 59, (suppl), 116 2S-5S. See also: Willett, Walter C., Colditz, Graham A. and Mueller, Nancy A., 1996, Strategies for Minimising Cancer Risk. Scientific American, Special Issue, «What you need to know about Cancer, September», 275, 3, 88–95.