title: Therapy of chronic non-malignant pain with opioids.
authors.forename: Alexander J
authors.initials: AJ
authors.lastname: Clark
authors.forename: Mary E
authors.initials: ME
authors.lastname: Lynch
mesh_terms: D000701:Analgesics, Opioid / Q000627:therapeutic use*; D006801:Humans; D008691:Methadone / Q000627:therapeutic use; D008875:Middle Aged; D010146:Pain / Q000188:drug therapy*; D014147:Tramadol / Q000627:therapeutic use
chemical_list: D000701:Analgesics, Opioid; D014147:Tramadol; D008691:Methadone