1. Research Healthcare Group, Veterans Affairs Long Beach Healthcare System, Long Beach;
2. Department of Medicine, University of California, Irvine, California;
3. Division of Nephrology and Hypertension, Vanderbilt University School of Medicine, Nashville, Tennessee;
4. Molecular Gerontology, Tokyo Metropolitan Institute of Gerontology; and
5. Department of Aging Control Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan