title: The dynamics of a heroin addiction epidemic.
mesh_terms: D000367:Age Factors; D003415:Crime; D004219:District of Columbia; D003932:Heroin / Q000652:urine; D006556:Heroin Dependence / Q000175:diagnosis / Q000453:epidemiology / Q000401:mortality / Q000517:prevention & control / Q000628:therapy; D006801:Humans; D019966:Substance-Related Disorders / Q000453:epidemiology*
chemical_list: D003932:Heroin