1. VA HSR&D Center for the Study of Healthcare Innovation, Implementation & Policy, VA Greater Los Angeles Healthcare System, Sepulveda, California.
2. VA Eastern Colorado Health Care System, Denver, Colorado.
3. Department of Medicine, UCLA David Geffen School of Medicine, Los Angeles, California.
4. Social Sciences Division, Pepperdine University, Malibu, California.
5. Division of Cardiology, School of Medicine, University of Colorado, Aurora, Colorado.
6. Colorado Cardiovascular Outcomes Research (CCOR) Consortium, Colorado.
7. Department of Health Policy and Management, UCLA Fielding School of Public Health, Los Angeles, California.