YesalisCharlesBahrkeMichael2005. “Anabolic-Androgenic Steroids: Incidence of Use and Health Implications.” Pp. 1–8 in n Research Digest, vol. 5. Washington, DC: President's Council on Physical Fitness and Sports. Retrieved July 10, 2008 (http://anabolicsteroidsinsports.com/images/Digest_March2005.pdf).