1. Kaiser Permanente Bernard J. Tyson School of Medicine Pasadena California USA
2. Department of Research and Evaluation, Kaiser Permanente Southern California Southern California Permanente Medical Group Pasadena California USA
3. Centers for Medicare and Medicaid Services Washington DC USA
4. Kaiser Permanente Southern Califorina, West Los Angeles California Los Angeles USA
5. Kaiser Foundation Health Plan Pasadena California USA
6. Kaiser Foundation Health Plan Seattle Washington USA
7. Department of Health Systems Science Kaiser Permanente Bernard J. Tyson School of Medicine Pasadena California USA