title: The National Longitudinal Study on Adolescent Health. Preliminary results: great expectations.
authors.forename: J D
authors.initials: JD
authors.lastname: Klein
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D015438:Health Behavior; D006293:Health Promotion; D006306:Health Surveys; D006801:Humans; D008137:Longitudinal Studies; D012309:Risk-Taking; D014481:United States