1. Department of Genetics, Southwest Foundation for Biomedical Research (A.G.C., L.J.M., J.B.), San Antonio, Texas 78245
2. Department of Internal Medicine and Molecular Science, University of Osaka Graduate School of Medicine (T.F., M.T., S.K., S.T., Y.M.), Osaka, Japan
3. Department of Medicine, TOPS Center for Obesity and Metabolic Research, and the Human and Molecular Genetics Center, Medical College of Wisconsin (G.S., H.J.J., A.E.K.B., D.M., A.K.), Milwaukee, Wisconsin 53226
4. Center for Genomic Research, Genset (D.C.), Paris, France