Student unrest in secondary schools.
D002653:Child Behavior Disorders / Q000534:rehabilitation*; D004519:Education, Special; D006801:Humans; D001523:Mental Disorders / Q000534:rehabilitation*; D011581:Psychological Tests; D012574:Schools; D013333:Student Health Services; D013663:Teaching; D014481:United States; D014830:Vocational Guidance