1. Center for Violence Prevention Research, Gainesville, FL, USA
2. Department of Pediatrics, University of Florida, Gainesville, FL, USA
3. School of Human Development and Organizational Studies in Education, University of Florida, Gainesville, FL, USA
4. Cooper Medical School of Rowan University, Camden, NJ, USA
5. Crimes Against Children Research Center, Family Research Laboratory, and Department of Sociology, University of New Hampshire, Durham, NH, USA