1. Division of Nephrology and Hypertension Kaiser Permanente Los Angeles Medical Center Los Angeles California USA
2. Department of Research and Evaluation Kaiser Permanente Southern California Pasadena California USA
3. Otsuka Pharmaceuticals Development & Commercialization, Inc. San Francisco California USA
4. Division of Nephrology and Hypertension UC Irvine Medical Center Irvine California USA
5. Department of Clinical Science Kaiser Permanente School of Medicine Pasadena California USA