title: Heroin addiction trends.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D003153:Community Health Services / Q000706:statistics & numerical data; D004196:Disease Outbreaks / Q000453:epidemiology; D004219:District of Columbia; D004335:Drug and Narcotic Control; D003932:Heroin / Q000600:supply & distribution; D006556:Heroin Dependence / Q000453:epidemiology* / Q000401:mortality / Q000517:prevention & control / Q000628:therapy; D006801:Humans; D007603:Jurisprudence; D008691:Methadone; D011330:Prisons; D012621:Seasons; D012926:Social Control, Formal; D019966:Substance-Related Disorders / Q000453:epidemiology; D014481:United States
chemical_list: D003932:Heroin; D008691:Methadone