1. Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
2. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
3. Center for Drug Safety and Effectiveness, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
4. Division of General Internal Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland
5. OptumLabs Visiting Fellow, OptumLabs, Eden Prairie, Minnesota
6. National Committee for Quality Assurance, Washington, DC