1. HSR&D Center for the Study of Healthcare Innovation, Implementation and Policy (CSHIIP), VA Greater Los Angeles Healthcare System, North Hills, California, USA
2. Department of Health Policy and Management, Fielding School of Public Health, University of California Los Angeles, Los Angeles, California, USA
3. UCLA Kaiser Permanente Center for Health Equity, University of California Los Angeles, Los Angeles, California, USA
4. Jonsson Comprehensive Cancer Center, University of California Los Angeles, Los Angeles, California, USA
5. Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA