title: Pharmacological treatment of cancer pain with special reference to the oral use of morphine.
mesh_terms: D000082:Acetaminophen / Q000627:therapeutic use; D000284:Administration, Oral; D001241:Aspirin / Q000627:therapeutic use; D001682:Biological Availability; D002908:Chronic Disease; D003061:Codeine / Q000627:therapeutic use; D006801:Humans; D009020:Morphine / Q000009:adverse effects / Q000627:therapeutic use*; D009369:Neoplasms / Q000150:complications*; D010146:Pain / Q000188:drug therapy*
chemical_list: D000082:Acetaminophen; D009020:Morphine; D001241:Aspirin; D003061:Codeine