Epidural and intrathecal narcotics for pain relief.
D004824:Epidural Space; D006801:Humans; D007267:Injections; D007278:Injections, Spinal; D009294:Narcotics / Q000008:administration & dosage / Q000627:therapeutic use*; D010146:Pain / Q000188:drug therapy*
D009294:Narcotics