1. Department of Medicine (E.A., Z.O., B.E., L.B.), University of California, Davis, Sacramento, California 95817
2. Department of Biochemistry (Z.O.), Cerrahpasa Medical School, University of Istanbul, 34098 Istanbul, Turkey
3. Department of Family and Community Medicine (T.A.P.), University of Rochester, Rochester, New York 14627
4. Veterans Affairs Northern California Health Care System (L.B.), Mather, California 95655