1. School of Social Work, University of Washington, Seattle, Washington.
2. Harborview Injury Prevention and Research Center, University of Washington, Seattle, Washington.
3. Department of Rehabilitation, Seattle Children's Hospital, Seattle, Washington.
4. Department of Epidemiology, School of Public Health, University of Washington, Seattle, Washington.
5. College of Nursing, Washington State University, Spokane, Washington.
6. Department of Pediatrics, University of Washington, Seattle, Washington.
7. Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, Washington.