title: Augmentation of hyperosmolar urea for midtrimester induced abortion: comparison of two methods.
mesh_terms: D000028:Abortion, Induced / Q000379:methods*; D004341:Drug Evaluation; D005260:Female; D006801:Humans; D007275:Injections, Intravenous; D008875:Middle Aged; D009994:Osmolar Concentration; D010121:Oxytocin / Q000008:administration & dosage; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D011458:Prostaglandins E / Q000008:administration & dosage; D014508:Urea / Q000008:administration & dosage*
chemical_list: D011458:Prostaglandins E; D010121:Oxytocin; D014508:Urea