1. Kempe Center for the Prevention and Treatment of Child Abuse and Neglect, Denver, Colorado;
2. Department of Emergency Medicine, School of Medicine, and
3. Adult and Child Center for Health Outcomes Research and Delivery Science, University of Colorado, Denver Colorado;
4. Department of Biostatistics and Informatics, Colorado School of Public Health, Aurora, Colorado; and
5. Children’s Hospital of Philadelphia, Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania