Violence in adolescence Violencia 4 Violence 2 Youth and violence 2 Adolescentes 1 Aspecto social 1 Behavior therapy for teenagers 1 Comportamiento 1 Comportamiento social 1 Conduct disorders in adolescence 1 Drug use 1 Escuelas 1 Jóvenes 1 Juventud y violencia 1 Psychological aspects 1 School violence 1 Urban violence 1 Uso de las drogas 1 Violence in children 1 Violencia en la adolescencia 1 Violencia juvenil 1 Youth 1