1. Goldstein I, Lue TF, Padma-Nathan H, Rosen RC, Steers WD, Wicker PA. Oral sildenafil in the treatment of erectile dysfunction 1998. J Urol. 2002. 167:1197–1203.
2. Algier LA, Hanoglu Z, Ozden G, Kara F. The use of complementary and alternative (non-conventional) medicine in cancer patients in Turkey. Eur J Oncol Nurs. 2005. 9:138–146.
3. Park HC, Park HJ, Park NC. The clinical trial of apomorphine hydrochloride SL (Uprima®) in patients with erectile dysfunction. Korean J Urol. 2003. 44:1038–1044.
4. Kennedy J. Herb and supplement use in the US adult population. Clin Ther. 2005. 27:1847–1858.
5. Ernst E, Cassileth BR. The prevalence of complementary/alternative medicine in cancer: a systematic review. Cancer. 1998. 83:777–782.
6. Gunther S, Patterson RE, Kristal AR, Stratton KL, White E. Demographic and health-related correlates of herbal and specialty supplement use. J Am Diet Assoc. 2004. 104:27–34.
7. Lambert BL, Butin DN, Moran D, Zhao SZ, Carr BC, Chen C, et al. Arthritis care: comparison of physicians' and patients' views. Semin Arthritis Rheum. 2000. 30:100–110.
8. Gozum S, Tezel A, Koc M. Complementary alternative treatments used by patients with cancer in eastern Turkey. Cancer Nurs. 2003. 26:230–236.
9. Moyad MA, Barada JH, Lue TF, Mulhall JP, Goldstein I, Fawzy A. Prevention and treatment of erectile dysfunction using lifestyle changes and dietary supplements: what works and what is worthless, part I. Urol Clin North Am. 2004. 31:249–257.
10. Tamaoki J, Nakata J, Kawatani K, Tagaya E, Nagai A. Ginsenoside-induced relaxation of human bronchial smooth muscle via release of nitric oxide. Br J Pharmacol. 2000. 130:1859–1864.
11. Hong B, Ji YH, Hong JH, Nam KY, Ahn TY. A double-blind crossover study evaluating the efficacy of Korean red ginseng in patients with erectile dysfunction: a preliminary report. J Urol. 2002. 168:2070–2073.
12. Guirguis WR. Oral treatment of erectile dysfunction: from herbal remedies to designer drugs. J Sex Marital Ther. 1998. 24:69–73.
13. Moyad MA. Dietary supplements and other alternative medicines for erectile dysfunction. What do I tell my patients? Urol Clin North Am. 2002. 29:11–22.
14. Moyad MA, Hathaway S, Ni HS. Traditional Chinese medicine, acupuncture, and other alternative medicines for prostate cancer: an introduction and the need for more research. Semin Urol Oncol. 1999. 17:103–110.
15. Engelhardt PF, Daha LK, Zils T, Simak R, Konig K, Pfluger H. Acupuncture in the treatment of psychogenic erectile dysfunction: first results of a prospective randomized placebo-controlled study. Int J Impot Res. 2003. 15:343–346.