1. Massachusetts General Hospital, Department of Emergency Medicine, Boston, MA
2. Harvard Medical School, Department of Emergency Medicine, Boston, MA
3. Hennepin County Medical Center/Hennepin Healthcare System, Departments of Medicine and Family Medicine, Minneapolis, MN
4. Minneapolis Medical Research Foundation, Minneapolis, MN
5. University of Minnesota, Department of Medicine, Minneapolis, MN
6. University of Michigan, Robert Wood Johnson Foundation, Clinical Scholars Program, Ann Arbor, MI
7. University of Michigan, Departments of Pediatrics and Internal Medicine, Ann Arbor, MI
8. University of Michigan, Institute for Healthcare Policy and Innovation, Ann Arbor, MI
9. University of Michigan, Gerald R. Ford School of Public Policy, Ann Arbor, MI