1. Department of Pediatrics, Drexel University College of Medicine, Philadelphia, Pennsylvania;
2. Division of Health Services Research, American Academy of Pediatrics, Washington, District of Columbia;
3. Department of Pediatrics, University of Colorado School of Medicine, Denver, Colorado;
4. Department of Pediatrics, Oregon Health and Science University, Portland, Oregon;
5. University of British Columbia and British Columbia’s Children’s Hospital, Vancouver, British Columbia, Canada;
6. Department of Pediatrics, George Washington University School of Medicine and Health Sciences, Washington, District of Columbia;
7. Department of Pediatrics, University of Washington School of Medicine, Seattle, Washington;
8. MED Pediatric Emergency Medicine, Boston University School of Medicine, Boston, Massachusetts;
9. Department of Medicine, Boston Children’s Hospital and Department of Pediatrics, Harvard Medical School, Boston, Massachusetts; and
10. Department of Pediatrics, School of Medicine, Wayne State University, Detroit, Michigan