title: [Oral opioids in chronic non-cancer pain. Prospective controlled studies needed!].
authors.forename: C
authors.initials: C
authors.lastname: Stein
mesh_terms: D000701:Analgesics, Opioid / Q000627:therapeutic use*; D002908:Chronic Disease; D018849:Controlled Clinical Trials as Topic; D006801:Humans; D010146:Pain / Q000188:drug therapy*
chemical_list: D000701:Analgesics, Opioid
vernacular_title: Orale Opioide bei chronischen Nicht-tumorschmerzen. Prospektive controllierte Studien n otig!