1.              Hutchens Alma R. (1991): Indian Herbology of North America. Boston, Shambhala Publications, Inc.

2.              Grieve M. (1971): A Modern Herbal. New York, Dover Publications, Inc

3.              Blumenthal Mark, Hall Tara, Goldberg Alicia, Kunz Tanja and Dinda Kara (eds.) (2003): The ABC Clinical Guide to Herbs. Austin, Texas, American Botanical Council

4.              NTP (2004): Summary of Data for Ginseng and Ginsenosides 5067-080-0, National Toxicilolgy Program, National Institute of Environmental Health Sciences, National Insitutes of Health. Accessed: 2/25,

5.              Assinewe V. A., Baum B. R., Gagnon D. and Arnason J. T. (2003): Phytochemistry of Wild Populations of Panax quinquefolius L. (North American Ginseng). J Agric Food Chem. 51(16): 4549-4553.

6.              Hoffman David (2003): Medical Herbalism. Rochester, Vermont, Healing Arts Press

7.              Schulz Volker Prof Dr med, Hþnsel Rudolf and Tyler Varro E. Publication Berlin (2001): Rational phytotherapy : a physician's guide to herbal medicine. New York, Springer

8.              Low Dog T. (2000): Foundations of Herbal Medicine. Albuquerque

9.              WHO (1999): Radix Ginseng Geneva, Switzerland, World Health Organization: WHO Monographs on Selected Medicinal Plants. 1

10.            Weiss R.F. (1988): Herbal medicine. Beaconsfield, UK, Beaconsfield Publishing, Ltd.

11.            Nishida S. and Satoh H. (2004): Comparative vasodilating actions among terpenoids and flavonoids contained in Ginkgo biloba extract. Clin Chim Acta. 339(1-2): 129-33.

12.            Vuksan V., Sievenpiper J. L., Koo V. Y., Francis T., Beljan-Zdravkovic U., Xu Z. and Vidgen E. (2000): American ginseng (Panax quinquefolius L) reduces postprandial glycemia in nondiabetic subjects and subjects with type 2 diabetes mellitus. Arch Intern Med. 160(7): 1009-13.

13.            Vuksan V., Sievenpiper J. L., Wong J., Xu Z., Beljan-Zdravkovic U., Arnason J. T., Assinewe V., Stavro M. P., Jenkins A. L., Leiter L. A. et al. (2001): American ginseng (Panax quinquefolius L.) attenuates postprandial glycemia in a time-dependent but not dose-dependent manner in healthy individuals. Am J Clin Nutr. 73(4): 753-8.

14.            Vuksan V., Stavro M. P., Sievenpiper J. L., Koo V. Y., Wong E., Beljan-Zdravkovic U., Francis T., Jenkins A. L., Leiter L. A., Josse R. G. et al. (2000): American ginseng improves glycemia in individuals with normal glucose tolerance: effect of dose and time escalation. J Am Coll Nutr. 19(6): 738-44.

15.            Jellin J.M., Gregory P.J., Batz F. and Hitchens K. (2004): Pharmacist's Letter/ Prescriber's Letter Natural Medicines Comprehensive Database. Stockton, CA, Therapeutic Research Faculty. Accessed: 1/12/2004, http://www.naturaldatabase.com/

16.            Chang J. (1999): Scientific evaluation of traditional Chinese medicine under DSHEA: a conundrum. Dietary Supplement Health and Education Act. J Altern Complement Med. 5(2): 181-9.

17.            Sturdivant Lee and Blakeley Tim (1999): The Bootstrap Guide to Medicinal Herbs in the Garden, Field, & Marketplace. Friday Harbor, WA, San Juan Naturals

18.            Foster S. and Duke J. (2000): A Field guide to Medicinal Plants and Herbs of Eastern and Central North America. New York, Houghton Mifflin

19.            Awad R., Arnason J. T., Trudeau V., Bergeron C., Budzinski J. W., Foster B. C. and Merali Z. (2003): Phytochemical and biological analysis of skullcap (Scutellaria lateriflora L.): a medicinal plant with anxiolytic properties. Phytomedicine. 10(8): 640-9.