title: Letter: Extra-amniotic administration of prostaglandins.
mesh_terms: D000028:Abortion, Induced; D002404:Catheterization; D005260:Female; D006801:Humans; D007267:Injections; D008722:Methods; D011247:Pregnancy; D011453:Prostaglandins / Q000008:administration & dosage*; D014599:Uterus
chemical_list: D011453:Prostaglandins