Testicular hormone and developmental changes in mating behavior of the male rat.
D000375:Aging; D000818:Animals; D002369:Castration; D008297:Male; D051381:Rats; D012725:Sexual Behavior / Q000187:drug effects*; D013737:Testis / Q000502:physiology*; D013739:Testosterone / Q000494:pharmacology*
D013739:Testosterone