title: The use of analgesics for cancer pain.
authors.forename: W O
authors.initials: WO
authors.lastname: Evans
mesh_terms: D000700:Analgesics / Q000627:therapeutic use*; D000701:Analgesics, Opioid / Q000627:therapeutic use; D006801:Humans; D009369:Neoplasms / Q000503:physiopathology*; D010146:Pain / Q000188:drug therapy*
chemical_list: D000700:Analgesics; D000701:Analgesics, Opioid