1. Adlercreutz, H.A.; Hockerstad, K.; Bannwart, C.; Bloigu, S.; Hamalainen, E.; Fotsis, T.; and Ollus, A. 1987. Effect of dietary components, including lignans and phytoestrogens, on enterohepatic circulation and live metabolism of estrogens and on sex hormone binding globulin (SHBG). J. Steroid Biochem. 27: 1135–1144.
2. Agarwal, R.; Wang, Z.Y.; and Mukhtar, H. 1991. Inhibition of mouse skin tumorinitiating activity of DMBA by chronic oral feeding of glycyrrhizin in drinking water. Nutr. Cancer 15: 187–193.
3. Ageel, A.M.; Mossa, J.S.; Al-Yahya, M.A.; Al-Said, M.S.; and Tariq, M. 1989. Experimental studies on anti-rheumatic crude drugs used in Saudi traditional medicine. Drugs Exptl. Clin. Res. 15: 369–372.
4. Alam, B.S., and Alam S.Q. 1987. The effect of different levels of dietary beta-carotene on DMBA-induced salivary gland tumors. Nutr. Cancer 9: 93–101.
5. Am Sun No. 1 Pharmaceutical Factory. 1977. Journal of Traditional Chinese Medicine. 57 (11): 677. (in Chinese.)