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Website of the American Cancer Society, http://www.cancer.org/docroot/eto/content/eto_5_3x_soy-bean.asp?siteare a=&viewmode=print
589
Gottlieb, Scott, 2003. Men should eat nine servings of fruit and vegetables a day. BMJ, 326, 1003.
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UK Ministry of Agriculture, Fisheries and Food advice as reported in the Sunday Times, 1999.
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Willet, W.C., 1994. Micronutrients and cancer risk. Am J. Clin. Nutr., 59, (suppl), 1162S-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.
