1. VA Bedford Healthcare System, Center for Healthcare Organization and Implementation Research, US Department of Veterans Affairs, Bedford, MA, USA.
2. Heller School for Social Policy and Management, Brandeis University, Waltham, MA, USA.
3. Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, MA, USA.
4. Department of Psychiatry and Human Behavior, Warren Alpert School of Medicine, Brown University, Providence, RI, USA.
5. VA Boston Healthcare System, Center for Healthcare Organization and Implementation Research, US Department of Veterans Affairs, Boston, MA, USA.
6. Department of Health Law, Policy, and Management, Boston University School of Public Health, Boston, MA, USA.
7. Greater Los Angeles VA Medical Center, HSR&D Center for the Study of Healthcare Innovation, Implementation, and Policy, US Department of Veterans Affairs, Los Angeles, CA, USA.
8. Department of Medicine and University of California Los Angeles, Los Angeles, CA, USA.
9. Department of Health Policy and Management, University of California Los Angeles, Los Angeles, CA, USA.