title: Segmental effect of lumbar epidural hydromorphone: a case report.
authors.forename: C T
authors.initials: CT
authors.lastname: Horan
authors.forename: D G
authors.initials: DG
authors.lastname: Beeby
authors.forename: J B
authors.initials: JB
authors.lastname: Brodsky
authors.forename: H A
authors.initials: HA
authors.lastname: Oberhelman
mesh_terms: D000042:Absorption; D000767:Anesthesia, Epidural; D003964:Diaphragm / Q000294:innervation; D006801:Humans; D004091:Hydromorphone / Q000008:administration & dosage / Q000378:metabolism / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D010149:Postoperative Pain / Q000188:drug therapy*; D012965:Sodium Chloride; D013903:Thoracic Surgery
chemical_list: D012965:Sodium Chloride; D004091:Hydromorphone