[1] Boston Med Ctr, Div Dev & Behav Pediat, Child Witness Violence Project, Boston, MA 02118 USA
[2] Univ Massachusetts, Sch Med, Dept Psychiat, Worcester, MA 01604 USA
[3] LUK Inc, Fitchburg, MA 01420 USA
[4] Blue Cross Blue Shield Michigan, Clin Epidemiol & Biostat, Ann Arbor, MI 48105 USA
[5] Justice Resource Inst, Ctr Trauma, Brookline, MA 02446 USA
[6] Massachusetts Dept Children & Families, Boston, MA 02111 USA