1. 1) Agarwal, R., Katiyar, K., Zaidi, S.I.A and Mukhtar,H., Inhibition of siki tumor promoter-caused induction of epidermal ornithine decarboxylase in SENCAR mice by polyphenolic fraction isolated from green tea and its individual epicatechin derivatives. Cancer Res., 52, 3582-3588 (1992).
2. 2) Yamada, K., Tachibana, H., Matsuo, N., Nishiyama, K. and Sugano,M., Structure-Activity Relationship of Immunoregulatory Factors in Foodstuffs. Food Sci. Technol. Res., 5, 1-8 (1999).
3. 3) Yamada, K. and Tachibana, H., Recent topics in anti-oxidative factors. BioFactors, 13, 167-172 (2000).
4. 4) Matsuo, N., Yamada, K., Mori, M., Shoji, K., Ueyama, T., Yunoki, S., Yamashita, K., Ozeki, M. and Sugano, M. Inhibition of dietary tea polyphenol of chemical mediator release from rat peritoneal exudate cells. Biosci. Biotechnol. Biochem., 64, 1437-1443 (2000).
5. 5) Mackeown-Eyssen, G. E. and Bright-See, E., Dietary FACTORS in colon cancer : international relationship. Nutr. Cancer, 6, 160-170 (1984).