1. Duke, J. (1999), J. Med. Food
2, 73–76.
2. Zi, X. and Agarwal, R. (1999), Proc. Natl. Acad. Sci. USA
96, 7490–7495.
3. Sonnenbichler, J., Scalera, F., Sonnenbichler, I., and Weyhenmeyer, R. (1999), J. Pharmacol. Exp. Ther. 290, 1375–1383.
4. “Top US Selling Herbs in 1999 and 2000,” Nutrition Business Journal, San Diego, CA.
5. Wallace, S., Carrier, D. J., Beitle, R., Clausen, E. and Griffis, C. (2002), Journal of Nutraceutricals, Functional and Medical Foods, submitted.