title: Opioids in chronic non-malignant pain.
authors.forename: H
authors.initials: H
authors.lastname: McQuay
mesh_terms: D000701:Analgesics, Opioid / Q000627:therapeutic use*; D002908:Chronic Disease; D019317:Evidence-Based Medicine; D006801:Humans; D010146:Pain / Q000188:drug therapy*
chemical_list: D000701:Analgesics, Opioid