1. Division of Emergency Medicine and
2. Department of Pediatrics and
3. Children’s Hospital Informatics Program at the Harvard-MIT Division of Health Sciences and Technology, Boston Children's Hospital, Boston, Massachusetts;
4. Stanford Prevention Research Center, Department of Medicine, and
5. Department of Health Research and Policy, Stanford University School of Medicine, Stanford, California
6. Center for Biomedical Informatics, Harvard Medical School, Boston, Massachusetts; and