title: Etiologies of adolescents at risk.
authors.affiliation: Harvard University, Cambridge, Massachusetts 02138.
authors.forename: J
authors.initials: J
authors.lastname: Kagan
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D005190:Family; D005260:Female; D006801:Humans; D008297:Male; D010684:Philosophy; D000297:Psychology, Adolescent; D012306:Risk; D012307:Risk Factors; D012727:Sex Characteristics; D012931:Social Environment; D012940:Social Problems; D013694:Temperament