1. Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA;
2. Allegheny County Department of Human Services Office of Data Analysis, Research, and Evaluation, Pittsburgh, PA, USA;
3. Department of Pediatrics, Baylor College of Medicine and Texas Children’s Hospital, Houston, TX, USA;
4. UCLA/Duke University National Center for Child Traumatic Stress, University of California, Los Angeles, CA, USA;
5. Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, CA, USA;
6. Family Bereavement Program, Arizona State University, Tempe, AZ, USA