1. VA Health Services Research & Development (HSR&D), Center for the Study of Healthcare Innovation, Implementation and Policy, VA Greater Los Angeles Healthcare System, Los Angeles, CA, USA.
2. VA QUERI Complementary and Integrative Health Evaluation Center, Los Angeles, CA, USA.
3. VA National Office of Patient Centered Care and Cultural Transformation, Washington, DC, USA.
4. Kaiser Permanente Southern California, Woodland Hills, CA, USA.
5. Department of Medicine, Department of Health Policy and Management, UCLA, Los Angeles, CA, USA.