1. Department of Medicine (Y.L., P.A.B., Y.Z., J.J., S.J.F.), Division of Endocrinology, Diabetes, University of Alabama at Birmingham, Birmingham, Alabama 35294;
2. Cancer Science Institute of Singapore and Department of Pharmacology (P.E.L.), National University of Singapore, Singapore 119077;
3. Department of Radiology (R.P.), Stanford University School of Medicine, Palo Alto, California 94304;
4. Department of Biological Sciences (J.F.L., W.Y.C.), Clemson University, Clemson, South Carolina 29634;
5. Metabolism, and Departments of Radiology (K.R.Z.), University of Alabama at Birmingham, Birmingham, Alabama 35294;
6. Cell, Developmental, and Integrative Biology (S.J.F.), University of Alabama at Birmingham, Birmingham, Alabama 35294;
7. Endocrinology Section (S.J.F.), Medical Service, Veterans Affairs Medical Center, Birmingham, Alabama 35233