Physicians assess drug abuse problem in Virginia.
D000661:Amphetamine; D001463:Barbiturates; D002188:Cannabis; D003932:Heroin; D006801:Humans; D008238:Lysergic Acid Diethylamide; D019966:Substance-Related Disorders; D011795:Surveys and Questionnaires; D014768:Virginia
D001463:Barbiturates; D003932:Heroin; D008238:Lysergic Acid Diethylamide; D000661:Amphetamine