Kimberley Freire, PhD1, Leah Perkinson, MPH2, Caroline Lippy, PhD2, Stephanie Romney, PhD3, Maria Catrina Jaime, MPH, CPH4, Elizabeth Miller, MD, PhD5, Susan Morrel-Samuels, MA, MPH6, Peter M. Hutchison6 and Laura Leviton, PhD7
(1)CDC Division of Violence Prevention, Atlanta, GA, (2)Centers for Disease Control and Prevention, Atlanta, GA, (3)San Francisco Department of Public Health, San Francisco, CA, (4)Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA, (5)UPMC Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA, (6)University of Michigan School of Public Health, Ann Arbor, MI, (7)Robert Wood Johnson Foundation, Princeton, NJ