Heroin: facts and comparisons.
D003932:Heroin / Q000627:therapeutic use*; D006801:Humans; D009020:Morphine / Q000627:therapeutic use*; D009369:Neoplasms / Q000503:physiopathology; D010148:Intractable Pain / Q000188:drug therapy*
D003932:Heroin; D009020:Morphine