title: Substance abuse by adolescents.
authors.affiliation: Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia.
authors.forename: G B
authors.initials: GB
authors.lastname: Slap
mesh_terms: D000293:Adolescent; D006801:Humans; D012307:Risk Factors; D015813:Substance Abuse Detection; D019966:Substance-Related Disorders / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology / Q000628:therapy; D014481:United States / Q000453:epidemiology