I. Etiology and prevention. Youth violence prevention, intervention, and social policy : an overview / Delbert S. Elliott, Patrick H. Tolan -- Two sides of the coin : multilevel prevention and intervention to reduce youth violent behavior / Dennis D. Embry, Daniel J. Flannery -- Stability and continuity of aggression from early childhood to young adulthood / L. Rowell Huesmann, Jessica F. Moise. II. Exposure. Principles of military combat stress treatment related to children in high-risk environments / Mark Chapin, Mark I. Singer -- Organization of exposure to violence among urban adolescents : clinical, prevention, and research implications / LaRue Allen ... [et al.]. III. Gender, gangs, and guns. Youth gangs, drugs, and socioeconomic isolation / Jeffrey Fagan -- Girls and violence : an overview / Meda Chesney-Lind, Marilyn Brown -- Role of firearms in youth violence / Norman B. Rushforth, Daniel J. Flannery. IV. Interventions. Family factors and youth violence / Deborah Gorman-Smith, Lisa Avery -- Teaching prosocial behavior to antisocial youth / Arnold P. Goldstein -- Psychopharmacological and neurobiological issues in the treatment of violent youth / Kenneth Tardiff. V. Conclusions. Implications for prevention, intervention, and social policy with violent youth / Daniel J. Flannery, C. Ronald Huff