1. Division of Emergency Medicine and Trauma Services, Department of Pediatrics, Children’s National Health System and The George Washington University, Washington, District of Columbia;
2. Department of Pediatrics, Children’s Hospital of Philadelphia and University of Pennsylvania, Philadelphia, Pennsylvania;
3. Department of Pediatrics, School of Medicine, The University of Utah, Salt Lake City, Utah;
4. Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin;
5. James M. Anderson Center for Health Systems Excellence, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio;
6. Department of Pediatrics, School of Medicine, University of Colorado and Children’s Hospital Colorado, Aurora, Colorado; and
7. Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital and Feinberg School of Medicine, Northwestern University, Chicago, Illinois