Itzhak Ben Zion

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In a naturalistic setting, sildenafil may affect quality, satisfaction, and the desire for intercourse in young asymptomatic men. Healthy men 21 years old or older having sex with a steady female partner for at least 6 months and intercourse frequency of at least twice a week were eligible. Subjects received 4 capsules of sildenafil powder 50 mg to take(More)
Although there is some evidence from twin studies that individual differences in sexual behavior are heritable, little is known about the specific molecular genetic design of human sexuality. Recently, a specific dopamine D4 receptor (DRD4) agonist was shown in rats to induce penile erection through a central mechanism. These findings prompted us to examine(More)
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