title: Opioids and rheumatic disease pain: comment on the article by Ytterberg et al.
authors.forename: S G
authors.initials: SG
authors.lastname: Gelfand
mesh_terms: D000701:Analgesics, Opioid / Q000627:therapeutic use*; D006801:Humans; D010146:Pain / Q000188:drug therapy* / Q000209:etiology*; D012216:Rheumatic Diseases / Q000150:complications*
chemical_list: D000701:Analgesics, Opioid