1. Department of Veterans Affairs, Center for the Study of Healthcare Innovation, Implementation and Policy, Los Angeles, CA, USA.
2. Department of Health Policy and Management, Jonathan and Karin Fielding School of Public Health, University of California Los Angeles (UCLA), Los Angeles, CA, USA.
3. Department of Veterans Affairs, Seattle-Denver Center of Innovation for Veteran Centered and Value Driven Care, Seattle, WA, USA.
4. Department of Medicine, David Geffen School of Medicine, University of California Los Angeles (UCLA), Los Angeles, CA, USA.