1. Ames, B.N. (1983) Science 221, 1256–1264.
2. Bendich, A. (1990) Ann. N.Y. Acad. Sci. 587, 169–180.
3. Bertram, J.S., Kolonel, L.M., Meyskens, F.L. (1987) Cancer Res. 47, 3012–3031.
4. Birt, D.F. (1986) Proc. Soc. Exp. Biol. Med. 183, 311–320.
5. Block, G. (1991) Am. J. Clin. Nutr. 53, 270–282.