title: Heroin and cannabis use is declining but new drugs show increase, says EU report.
authors.affiliation: Brussels.
authors.forename: Rory
authors.initials: R
authors.lastname: Watson
mesh_terms: D005060:Europe / Q000453:epidemiology; D006556:Heroin Dependence / Q000453:epidemiology; D006801:Humans; D002189:Marijuana Abuse / Q000453:epidemiology; D015995:Prevalence; D011619:Psychotropic Drugs; D019966:Substance-Related Disorders / Q000453:epidemiology*
chemical_list: D011619:Psychotropic Drugs