1. Division of Endocrinology, Metabolism, and Molecular Medicine, Department of Internal Medicine (I.S.-H., T.C.F., C.-S.S., D.L., R.I., A.P.S.-H.), Charles R. Drew University of Medicine and Science, Los Angeles, California 90059;
2. David Geffen School of Medicine at University of California (I.S.-H., T.C.F.), Los Angeles, Los Angeles, California 90095