Letter: Prostaglandins and the unfavourable cervix.
D002404:Catheterization; D036861:Delivery, Obstetric; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007751:Labor, Induced; D011247:Pregnancy; D011453:Prostaglandins / Q000008:administration & dosage
D011453:Prostaglandins