1. Department of Health Policy and Management, University of California, Los Angeles Fielding School of Public Health
2. Department of Healthcare Economics, UnitedHealthcare, Cypress, California
3. Department of Family Medicine, David Geffen School of Medicine at University of California, Los Angeles
4. Office of Healthcare Transformation and Innovation, VA Greater Los Angeles Healthcare System, Los Angeles, California
5. University of California, Los Angeles Center for Health Policy Research
6. Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine at University of California Los Angeles
7. Department of Public Health, Graduate School of Medicine, University of Tokyo, Bunkyo-ku, Tokyo, Japan