1. Department of Research and Evaluation Kaiser Permanente Southern California Pasadena California USA
2. School of Medicine Department of Psychiatry and Behavioral Sciences University of Washington Seattle Washington USA
3. University of Southern California Keck School of Medicine Department of Family Medicine Los Angeles California USA
4. Los Angeles Medical Center Department of Geriatrics Palliative and Continuing Care Kaiser Permanente Southern California Pasadena California USA
5. Los Angeles Medical Center Department of Neurology Kaiser Permanente Southern California Pasadena California USA
6. West Los Angeles Medical Center Department of Geriatrics Palliative and Continuing Care Kaiser Permanente Southern California Pasadena California USA