[Male gonadal gland].
D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging; D000728:Androgens / Q000378:metabolism; D002648:Child; D002675:Child, Preschool; D007172:Erectile Dysfunction; D006801:Humans; D007985:Leydig Cells / Q000502:physiology; D008297:Male; D008875:Middle Aged; D013085:Spermatic Cord / Q000033:anatomy & histology; D013737:Testis / Q000033:anatomy & histology / Q000254:growth & development / Q000502:physiology*; D013739:Testosterone / Q000096:biosynthesis
D000728:Androgens; D013739:Testosterone