1. Division of Endocrinology and Metabolism (S.O., J.A., H.M.K., J.K.), Seoul, 156–755, Korea;
2. Department of Internal Medicine, Division of Cardiology (W.S.L.), Seoul, 156–755, Korea
3. Department of Internal Medicine, and Departments of Anesthesiology (H.K.) Seoul, 156–755, Korea;
4. Department of Biochemistry (H.-S.K.), College of Medicine, The Catholic University of Korea, Seoul, 110–758, Korea
5. Department of Surgery (D.J.), Vanderbilt University School of Medicine, Nashville, Tennessee 37232
6. Fraternal Order of Eagles Diabetes Research Center and Division of Endocrinology and Metabolism (D.A.), University of Iowa Carver College of Medicine, Iowa City, Iowa 52242
7. Pathology (T.J.L.), College of Medicine, Chung-Ang University, Seoul, 156–755, Korea