Progesterone and duration of heat in estrogen-treated ovariectomized guinea pigs.
D000818:Animals; D002369:Castration; D004958:Estradiol / Q000494:pharmacology*; D004971:Estrus / Q000187:drug effects*; D005260:Female; D006168:Guinea Pigs; D011187:Posture; D011247:Pregnancy; D011374:Progesterone / Q000494:pharmacology*; D012726:Sexual Behavior, Animal / Q000187:drug effects; D013997:Time Factors
D011374:Progesterone; D004958:Estradiol