1. Department of Cell Biology (N.Y., S.J.F.), Birmingham, Alabama 35294-0012
2. Department of Medicine (X.W., J.J., S.J.F.), Division of Endocrinology, Diabetes, and Metabolism, University of Alabama at Birmingham, Birmingham, Alabama 35294-0012
3. Endocrinology Section (S.J.F.), Medical Service, Veterans Affairs Medical Center, Birmingham, Alabama