title: Epidural fentanyl in the management of severe pain.
mesh_terms: D002404:Catheterization; D004824:Epidural Space; D005260:Female; D005283:Fentanyl / Q000008:administration & dosage*; D006801:Humans; D008875:Middle Aged; D010146:Pain / Q000188:drug therapy*; D013909:Thorax
chemical_list: D005283:Fentanyl