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Serotonin is perhaps best known as a neurotransmitter that modulates neural activity and a wide range of neuropsychological… Expand Objective:This study assessed unprotected anal and oral sex behaviors of HIV-positive gay and bisexual men in New York City and… Expand Brain mechanisms that control human sexual behavior in general, and ejaculation in particular, are poorly understood. We used… Expand The authors from the Vattikuti Institute in the USA report a prospective comparison of radical prostatectomy and robot‐assisted… Expand We tested the significance of a population of lumbar spinothalamic cells for male sexual behavior in rats. These cells are… Expand The neurohypophysial peptide oxytocin (OT) and OT-like hormones facilitate reproduction in all vertebrates at several levels. The… Expand All scientific investigations begin with distinct objectives: first is the hypothesis upon which studies are undertaken to… Expand Background Worldwide, the predominant mode of human immunodeficiency virus (HIV) transmission is heterosexual intercourse, but… Expand The feasibility of sparing postganglionic fibers of lumbar sympathetic nerves during the course of retroperitoneal… Expand Abstract Special definitions are proposed for three concepts representing characteristics of female mammals when they are in… Expand