1. Department of Internal Medicine, Section of Endocrinology and Metabolism (F.W.-L., S.E.I., N.T., L.W., K.C.H.), New Haven, Connecticut 06510
2. Department of Immunobiology (F.W.-L., L.M., P.P.-H., E.M., K.C.H.), New Haven, Connecticut 06510
3. Department of Laboratory Medicine (P.H., J.M.), Yale University School of Medicine, New Haven, Connecticut 06510
4. Pacific NW Diabetes Research Institute (W.A.H.), Seattle, Washington 98122
5. Department of Internal Medicine, Section of Hematology (P.W.M.), Yale University School of Medicine, New Haven, Connecticut 06510