Prostaglandins.
D000653:Amniotic Fluid / Q000032:analysis; D001769:Blood; D005260:Female; D006801:Humans; D011247:Pregnancy; D011453:Prostaglandins / Q000032:analysis; D014469:Umbilical Arteries; D014470:Umbilical Cord; D014471:Umbilical Veins
D011453:Prostaglandins