1. From the Department of Surgery (Clark, Agoubi), University of Washington, Seattle, WA
2. the Surgical Outcomes Research Center (Clark), University of Washington, Seattle, WA
3. the Harborview Injury Prevention and Research Center, Seattle, WA (Agoubi, De Grauw, Vavilala, Rivara, Arbabi).
4. the Division of Trauma, Burn, and Critical Care Surgery, Department of Surgery (Stewart, Arbabi, Pham), University of Washington, Seattle, WA
5. the Department of Anesthesiology (Vavilala), University of Washington, Seattle, WA
6. the Department of Pediatrics (Vavilala, Rivara), University of Washington, Seattle, WA