Estradiol maintains castrated male rats' sexual reflexes in copula, but not ex copula.
D000818:Animals; D002369:Castration; D003307:Copulation; D004542:Ejaculation / Q000187:drug effects; D004958:Estradiol / Q000494:pharmacology*; D008297:Male; D051381:Rats; D012018:Reflex / Q000187:drug effects*
D004958:Estradiol