1. Kaiser Permanente, Bernard J. Tyson School of Medicine, CA, USA
2. The Permanente Medical Group, Oakland, CA, USA
3. California Northstate University, College of Medicine, CA, USA
4. University of California, Davis School of Medicine, CA, USA
5. University of California, San Francisco School of Medicine, CA, USA
6. Kaiser Permanente Northern California, Division of Research, CA, USA
7. Internal Medicine Residency Program, Kaiser Foundation Health Plan Inc, CA, USA