Synergism of estrogen and progesterone on mammary gland growth in guinea pigs.
D001940:Breast / Q000187:drug effects*; D004958:Estradiol / Q000494:pharmacology*; D004967:Estrogens; D006168:Guinea Pigs; D006801:Humans; D042361:Mammary Glands, Human; D011374:Progesterone / Q000494:pharmacology*
D004967:Estrogens; D011374:Progesterone; D004958:Estradiol
BREAST/effect of drugs on; ESTRADIOL/effects; PROGESTERONE/effects