1. Department of Health Promotion and Policy, School of Public Health and Health Sciences, University of Massachusetts, Amherst, Massachusetts, USA
2. Department of Veterans Affairs (VA) Health Service Research & Development (HSR&D) Center for the Study of Healthcare Innovation, Implementation & Policy (CSHIIP), VA Greater Los Angeles Healthcare System, Los Angeles, California, USA
3. Department of Medicine, Geffen School of Medicine, University of California, Los Angeles, California, USA
4. Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California, Los Angeles, California, USA