1. Division of Hospital Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
2. Division of Hospital Medicine, University of Colorado School of Medicine, Aurora, CO, USA
3. Division of Hospital Medicine, Massachusetts General Hospital, Boston, MA, USA
4. Division of Hospitalist Medicine, Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, USA
5. Denver Health, Denver, CO, USA
6. Sound Physicians, Tacoma, WA, USA