1.) Iguchi, K., Okumura, N., Usui, S., Sajiki, H., Hirota, K., and Hirano, K. Myristoleic acid, a cytotoxic component in the extract from Serenoa repens, induces apoptosis and necrosis in human prostatic LNCaP cells. Prostate 2001;47(1):59-65. 2.) Tracy TS. Saw palmetto. In: Tracy TS, Kingston RL, eds. Herbal Products. Toxicology and Clinical Pharmacology, Second Edition. Totowa NJ: Humana Press Inc.; 2007.3.) Groom, S. N., Johns, T., and Oldfield, P. R. The potency of immunomodulatory herbs may be primarily dependent upon macrophage activation. J Med Food 2007;10(1):73-79. 4.) Carraro JC, et al. Prostate. 1996;29(4):231-40. Niederprum HJ, et al. Testosterone 5-reductase inhibition by fatty acids from sabal serulata fruits. Phytomedicine. 1994;1: 127-133.