Understanding teenage drug abuse.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001007:Anxiety / Q000150:complications; D001290:Attitude; D004335:Drug and Narcotic Control; D005260:Female; D006801:Humans; D008297:Male; D012917:Social Adjustment; D012922:Social Change; D019966:Substance-Related Disorders / Q000453:epidemiology / Q000209:etiology; D014481:United States