1. Kaiser Permanente Washington Health Research Institute, Seattle, WA, USA
2. Department of Epidemiology, University of Washington, Seattle, WA, USA
3. School of Pharmacy, University of Washington, Seattle, WA, USA
4. Department of Biostatistics & Epidemiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
5. Department of Pathology, Stanford University, Stanford, CA, USA
6. Department of Medicine, Division of General Internal Medicine, University of Washington, Seattle, WA, USA
7. Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT, USA