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“Effectiveness of universal school-based programs to prevent violent and aggressive behavior: a systematic review”, American Journal of Preventive Medicine, vol. 33, no. 2S, pp. S114–29, 2007.,
“Effects on violence of laws and policies facilitating the transfer of juveniles from the juvenile justice system to the adult justice system: a systematic review”, American Journal of Preventive Medicine, vol. 32, no. 4S, pp. S7-28, 2007.,