Effects of copulation on reproductive function in aged female rats.
D000375:Aging; D000818:Animals; D003307:Copulation; D003338:Corpus Luteum / Q000502:physiology; D004971:Estrus; D005260:Female; D011247:Pregnancy; D051381:Rats; D012726:Sexual Behavior, Animal / Q000502:physiology; D012931:Social Environment; D014621:Vagina / Q000502:physiology