The effects of estradiol and progesterone on the reproductive tract of the opossum, and their possible relation to parturition.
D000818:Animals; D004958:Estradiol; D009893:Opossums; D036801:Parturition; D011374:Progesterone; D012098:Reproduction
D011374:Progesterone; D004958:Estradiol
ESTRADIOL/effect, reproductive; PARTURITION/relation to estradiol and progesterone; PROGESTERONE/effect on reproductive tract