title: Heroin and medical reasoning: the power of analogy.
mesh_terms: D003932:Heroin / Q000266:history* / Q000627:therapeutic use; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D012120:Respiration Disorders / Q000188:drug therapy; D014481:United States
chemical_list: D003932:Heroin