title: The epidemiology of drug abuse: current issues. Surveys--longitudinal studies.
mesh_terms: D000293:Adolescent; D000367:Age Factors; D004812:Epidemiologic Methods; D005500:Follow-Up Studies; D006801:Humans; D008137:Longitudinal Studies; D012107:Research Design; D012931:Social Environment; D019966:Substance-Related Disorders / Q000453:epidemiology*