1. Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
2. Center for Health Policy & Health Services Research, Henry Ford Health, Detroit, Michigan
3. Kaiser Permanente Washington, Seattle
4. Kaiser Permanente Colorado, Aurora
5. Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena
6. Department of Health Systems Science, Kaiser Permanente Bernard J. Tyson School of Medicine, Pasadena, California
7. Kaiser Permanente Hawaii, Honolulu
8. Kaiser Permanente Northwest, Portland, Oregon
9. HealthPartners Institute, Minneapolis, Minnesota