title: [Away from heroin--toward cocaine? Changes in the drug scene?].
mesh_terms: D003042:Cocaine; D003430:Cross-Sectional Studies; D005860:Germany, West; D006556:Heroin Dependence / Q000453:epidemiology*; D006801:Humans; D019966:Substance-Related Disorders / Q000453:epidemiology*
chemical_list: D003042:Cocaine
vernacular_title: Weg vom Heroin--hin zum Kokain? Wandel in der Drogenszene.