Endocrine activity of the early placenta of the guinea-pig.
D004967:Estrogens / Q000494:pharmacology*; D005260:Female; D006168:Guinea Pigs; D010920:Placenta / Q000502:physiology*; D011247:Pregnancy; D011374:Progesterone / Q000494:pharmacology*
D004967:Estrogens; D011374:Progesterone
ESTROGENS/pharmacology; PLACENTA/physiology; PROGESTERONE/pharmacology