1. Kolonel,L.N., Hankin,J.H., Whittemore,A.S. et al . ( 2000 ) Vegetables, fruits, legumes and prostate cancer: a multiethnic case-control study. Cancer Epidemiol. Biomarkers Prev. , 9 , 795 –804.
2. Cohen,J.H., Kristal,A.R. and Stanford,J.L. ( 2000 ) Fruit and vegetable intakes and prostate cancer risk. J. Natl Cancer Inst. , 92 , 61 –68.
3. Kristal,A.R. and Lampe,J.W. ( 2002 ) Brassica vegetables and prostate cancer risk: a review of the epidemiological evidence. Nutr. Cancer , 42 , 1 –9.
4. Giovannucci,E., Rimm,E.B., Liu,Y., Stampfer,M.J. and Willett,W.C. ( 2003 ) A prospective study of cruciferous vegetables and prostate cancer. Cancer Epidemiol. Biomarkers Prev. , 12 , 1403 –1409.
5. Zhang,Y., Talalay,P., Cho,C.G. and Posner,G.H. ( 1992 ) A major inducer of anticarcinogenic protective enzymes from broccoli: isolation and elucidation of structure. Proc. Natl Acad. Sci. USA , 89 , 2399 –2403.