Psychological problems.
D000293:Adolescent; D000294:Adolescent Behavior; D000296:Adolescent Psychiatry / Q000379:methods; D005260:Female; D006801:Humans; D007604:Juvenile Delinquency; D008297:Male; D001523:Mental Disorders / Q000628:therapy; D000297:Psychology, Adolescent; D012725:Sexual Behavior; D012931:Social Environment