1. School of Social Work, University of Washington, Seattle, Washington, USA.
2. Harborview Injury Prevention and Research Center, University of Washington, Seattle, Washington, USA.
3. Department of Epidemiology, School of Public Health, University of Washington, Seattle, Washington, USA.
4. Department of Rehabilitation, University of Washington and Seattle Children's Hospital, Seattle, Washington, USA.
5. College of Nursing, Washington State University, Spokane, Washington, USA.
6. School of Social Work, University at Buffalo, Buffalo, New York.
7. Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, Washington, USA.
8. Department of Trauma Surgery, Harborview Medical Center, Seattle, Washington, USA.