The effects of sex steroid hormones upon longevity in rats.
D000818:Animals; D001947:Breeding; D002369:Castration; D004958:Estradiol / Q000494:pharmacology*; D005260:Female; D008136:Longevity / Q000187:drug effects*; D008297:Male; D051381:Rats; D012723:Sex; D013739:Testosterone / Q000494:pharmacology*
D013739:Testosterone; D004958:Estradiol