title: Drug enforcement policy as a factor in trends of trafficking and use of different substances.
authors.forename: G
authors.initials: G
authors.lastname: Arnao
mesh_terms: D006801:Humans; D007558:Italy; D007880:Legislation, Drug / Q000639:trends*; D019966:Substance-Related Disorders / Q000453:epidemiology*; D014481:United States