title: The WHO analgesic ladder: 25 years on.
authors: St. Clare Hospice, Essex, UK.
authors: Giovambattista
authors: G
authors: Zeppetella
mesh_terms: D000700:Analgesics / Q000008:administration & dosage*; D019983:Guideline Adherence; D006801:Humans; D009369:Neoplasms / Q000451:nursing*; D010146:Pain / Q000188:drug therapy*; D017410:Practice Guidelines as Topic; D014944:World Health Organization
chemical_list: D000700:Analgesics