From the Pediatric Surgery and Pediatric Trauma, Mary Bridge Children's Hospital & Health Center, Tacoma, WA (M.A.E.Jr.); Department of Pediatrics Emergency Medicine, Yale University, New Haven, CT (M.A., G.T.); Department of Surgery, University of Washington, Seattle, WA (K.F-O.); Department of Pediatrics, San Antonio Military Medical Center, Ft Sam Houston, TX; Uniformed Services University, Bethesda, MD (M.A.B.); Department of Pediatric Emergency Medicine, Brown University, Providence, RI (S.J.D.); Department of Orthopaedics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH (K.F.); Division of Pediatric Surgery, Children's Hospital Los Angeles, Los Angeles, CA (R.B.); Keck School of Medicine, University of Southern California, Los Angeles, CA (R.B.); Department of Pediatric Emergency Medicine, Medical College of Wisconsin, Milwaukee, WI (J.M.C.); and Institute of Primary Care Health, Cardiff University School of Medicine, Cardiff, Wales, UK (S.M.).