1. Division of Endocrinology, Diabetes, and Metabolism (M.J.B.V., A.K.H., E.C., Y.T.), Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio 45267
2. Division of Statistical Genetics (D.A.G.), Columbia University, New York, New York 10027
3. Diabetes and Endocrinology Consultants (B.K.G.), Nyack, New York 10994
4. Cincinnati Veterans Affairs Medical Center (Y.T.), Cincinnati, Ohio 45220