1. Kaiser Permanente Northern California, Endocrinology, South San Francisco, California, United States, ;
2. Kaiser Permanente Northern California, Division of Research, Oakland, California, United States;
3. University of California San Francisco, 8785, Geriatrics, San Francisco, California, United States;
4. Kaiser Permanente Northern California, Division of Research, 2000 Broadway, Oakland, California, United States, 94612-2304;