title: [Use of opioid drugs].
authors: A
authors: A
authors: Bierge Valero
authors: C
authors: C
authors: Arruba Mombiela
mesh_terms: D000701:Analgesics, Opioid / Q000627:therapeutic use*; D006801:Humans; D009369:Neoplasms / Q000503:physiopathology; D010146:Pain / Q000188:drug therapy* / Q000209:etiology; D010166:Palliative Care; D013727:Terminal Care
chemical_list: D000701:Analgesics, Opioid