1. Robert Wood Johnson Clinical Scholars Program and
2. Division of General Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania;
3. Child Health Corporation of America, Shawnee Mission, Kansas;
4. Department of Pediatrics, University of Colorado Health Sciences Center, Aurora, Colorado;
5. Emergency Department, Children's Hospital, Aurora, Colorado;
6. Departments of Internal Medicine and Pediatrics, Virginia Tech-Carilion School of Medicine, Roanoke, Virginia;
7. Department of Medical Affairs, Carilion Clinic Children's Hospital, Roanoke, Virginia;
8. Department of Pediatrics, Children's Mercy Hospital, Kansas City, Missouri;
9. Department of Pediatrics, University of Missouri-Kansas City School of Medicine, Kansas City, Missouri;
10. Systems Operations, Children's Hospital Boston, Boston, Massachusetts;
11. Departments of Pediatrics and
12. Division of General Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania; and
13. PolicyLab, Philadelphia, Pennsylvania;
14. Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, Pennsylvania
15. Biostatistics and Epidemiology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania;