1. Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine (Y.B.), Showa University School of Medicine, Tokyo 142-8555, Japan
2. Division of Statistical Genetics (D.A.G.), Columbia University, New York, New York 10027
3. Division of Endocrinology (T.F.D.), James J. Peters Veterans Affairs Medical Center, Mount Sinai School of Medicine, New York, New York 10029
4. Division of Endocrinology (E.J., E.C., Y.T.), University of Cincinnati College of Medicine
5. Cincinnati Veterans Affairs Medical Center (Y.T.), Cincinnati, Ohio 45267