The "seesaw" theory of the regulatory mechanism of pregnancy.
D000028:Abortion, Induced; D004958:Estradiol / Q000502:physiology; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D008954:Models, Biological; D010121:Oxytocin / Q000502:physiology; D011247:Pregnancy; D011374:Progesterone / Q000502:physiology*; D011453:Prostaglandins / Q000502:physiology*; D014599:Uterus / Q000502:physiology
D011453:Prostaglandins; D011374:Progesterone; D004958:Estradiol; D010121:Oxytocin