The World Health Organization analgesic ladder.
Miller
Elissa
E
D000700:Analgesics / Q000627:therapeutic use*; D003663:Decision Trees; D014943:Global Health; D006801:Humans; D009369:Neoplasms / Q000150:complications / Q000188:drug therapy; D010146:Pain / Q000188:drug therapy* / Q000209:etiology / Q000517:prevention & control; D010148:Intractable Pain / Q000188:drug therapy; D017410:Practice Guidelines as Topic; D014944:World Health Organization
D000700:Analgesics