The importance of progesterone in the maintenance of pregnancy in the sheep.
D000818:Animals; D005260:Female; D007743:Labor, Obstetric / Q000187:drug effects; D010920:Placenta / Q000502:physiology; D011247:Pregnancy; D011270:Pregnancy, Animal; D011374:Progesterone / Q000494:pharmacology*; D012756:Sheep; D014599:Uterus / Q000502:physiology
D011374:Progesterone