Group Health Cooperative, Seattle, Washington, United States
Kaiser Permanente Washington Health Research Institute, Seattle, Washington, United States
Kaiser Permanente, San Diego, California, United States
Kaiser Permanente, Santa Clara, California, United States
Kaiser Permanente Center for Health Research, Portland, Oregon, United States
Kaiser Permanente San Diego, San Diego, California, United States
Kaiser Permanente Center for Health Research, Portland, Oregon, United States
Division of Research Northern California, Oakland, California, United States