1. Mills S and Bone K. Principles and Practice of Phytotherapy. Churchill Livingstone, Edinburgh, UK 2000:534-541.

2. Tilgner S. Herbal Medicine from the Heart of the Earth. Wise Acres Press, Inc. Creswell, OR, 1999:107.

3. Murray M and Pizzorno J. Encyclopedia of Natural Medicine, 2^nd Ed. Prima Publishing, Rocklin, CA 1998:186-187.

4. Botanical Medicine Class Notes. Bastyr University, Kenmore, WA. 2002.

5. Ferguson, et al, Toxicologist, 3, 1983:51.

6. Ben-Hur E and Fulder S. Am J Clin Med 1981;9(1):48.

7. Bohn B et al. Arneimittelforschung 1987;37(10):1193.

8. Asano K et al. Effect of Eleutherococcus senticosus on human working capacity. Planta Med 1986;37:175-177.

9. Afanesjeva TN et al. Proceedings of the 2^nd International Symposium on Eleutherococcus, Moscow 1985.

10. Farnsworth NR et al. Siberian ginseng: current status as an adaptogen, In: Farnsworth NR et al (eds) Economic and medicinal plant research, vol 1 Academic Press, London 1985:155-215.

11. Brekhman II. Eleutherococcus: 20 Years of Research and Applications. Presentation at th e1st Annual International Symposium on Eleutherococcus. Hamburg, Germany May 29, 1980.

12. Bohn G, Nebe CT, Birr C. Flow-cytometric Studies with Eleutherococcus senticosus Extract as an Immunomodulatory Agent.  Arnzeim.-Forschung., 37(10): 1193-6, 1987

13. Yaramenko The Far Eastern Scientific Center, USSR Academy of Sciences, Vladivostok, 75-78, 1981.

14. Kupin, et al. New Data on Eleutherococcus: Proceedings of the Second International Symposium on Eleutherococcus, Moscow, 1984:294-300.

15. Institute of Oncology, Ministry of Health, USSR Foreign Trade Publication, (Georgia, USSR); 1970.

16. Molokovskii DS et al. Probl Endokrinol (Mosk)1989;35(6):82-87.

17. Murray M and Pizzorno J. Encyclopedia of Natural Medicine, 2^nd Ed. Prima Publishing, Rocklin, CA 1998:368-369.

18. Lawrence Review of Natural Products: Eleutherococcus. May 1996.

19. Brinker F.  Herb Contraindications and Drug Interactions, 3^rd ed.  Eclectic Medical Publications, Sandy, OR 2001:86.

20. Brown DJ. Herbal Prescriptions for Better Health. Prima Publishing, Rocklin, CA 1996:69-77.