1. Mezzich JE Hernandez-Serrano R. Psychiatry and Sexual Health: An Integrative Approach. Lanham MD: The Rowman Littlefield Publishing Group; 2006.
2. Trigwel P. Helping People with Sexual Problems. 1st ed. Philadelphia: Elsevier Mosby; 2005.
3. Neurobiology of sexual function;Meston CM;Arch Gen Psychiatry.,2000
4. Kaufman DM. Clinical Neurology for Psychiatrists. 5 th ed. Philadelphia PA: Saunders; 2001.
5. Physiology of penile erection and pathophysiology of erectile dysfunction;Dean RC;Urol Clin North Am.,2005