1. Department of Emergency Medicine, Brigham and Women’s Hospital, Boston, Massachusetts
2. Division of Research and Evaluation, Comagine Health, Portland, Oregon
3. School of Public Health, Department of Epidemiology and Biostatistics, University of Nevada, Las Vegas
4. Section of General Internal Medicine, Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts
5. Harvard Medical School, Boston, Massachusetts
6. McLean Hospital, Belmont, Massachusetts
7. Schneider Institutes for Health Policy, Heller School for Social Policy and Management, Brandeis University, Waltham, Massachusetts
8. OCHIN Inc, Portland, Oregon