title: Pain in patients with cancer: the World Health Organization analgesic ladder and beyond.
authors.forename: K
authors.initials: K
authors.lastname: Forbes
mesh_terms: D000700:Analgesics / Q000627:therapeutic use*; D006801:Humans; D009369:Neoplasms / Q000150:complications* / Q000188:drug therapy*; D010146:Pain / Q000188:drug therapy* / Q000209:etiology*; D017410:Practice Guidelines as Topic; D016896:Treatment Outcome; D014944:World Health Organization
chemical_list: D000700:Analgesics