title: Opioids for chronic nonmalignant and neuropathic pain.
authors.forename: Jürgen
authors.initials: J
authors.lastname: Sandkühler
authors.forename: Hans G
authors.initials: HG
authors.lastname: Kress
mesh_terms: D000701:Analgesics, Opioid / Q000627:therapeutic use*; D002908:Chronic Disease; D006801:Humans; D009437:Neuralgia / Q000188:drug therapy*
chemical_list: D000701:Analgesics, Opioid