title: Experience with epidural hydromorphone for post-thoracotomy pain relief.
mesh_terms: D000328:Adult; D000368:Aged; D006801:Humans; D004091:Hydromorphone / Q000008:administration & dosage / Q000627:therapeutic use*; D007268:Injections, Epidural; D008875:Middle Aged; D010149:Postoperative Pain / Q000188:drug therapy*; D013908:Thoracotomy
chemical_list: D004091:Hydromorphone