| Affiliation: | 1. Department of Rehabilitation Medicine, University of Washington, Seattle, Washington;2. Department of Comparative Effectiveness, Cost, and Outcomes Research Center, University of Washington, Seattle, Washington;3. Department of Epidemiology, University of Washington, Seattle, Washington;4. Department of Group Health Research Institute, University of Washington, Seattle, Washington;5. Department of Biostatistics, University of Washington, Seattle, Washington;6. Department of Surgery, University of Washington, Seattle, Washington;7. Department of Harborview Injury Prevention & Research Center, University of Washington, Seattle, Washington;8. Department of Radiology, University of Washington, Seattle, Washington;9. Department of Neurological Surgery, University of Washington, Seattle, Washington;10. Department of Orthopedics and Sports Medicine, University of Washington, Seattle, Washington;11. Department of Health Services and Pharmacy, University of Washington, Seattle, Washington |
