title: A survey of drug use among impaired drivers in Virginia.
mesh_terms: D000435:Alcoholic Intoxication / Q000175:diagnosis / Q000453:epidemiology*; D001334:Automobile Driving; D006801:Humans; D007880:Legislation, Drug; D019966:Substance-Related Disorders / Q000175:diagnosis* / Q000453:epidemiology*; D014768:Virginia