1. Molecular Signaling Section (D.G., I.R.A., J.H.L., J.-M.G., T.H., Y.C., J.W.), National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland 20892
2. Laboratory of Bioorganic Chemistry, Mouse Transgenic Core Facility (H.L.), National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland 20892
3. Laboratory of Mouse Metabolic Core Facility (W.J., O.G.), National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland 20892
4. Yale University School of Nursing (W.S.Z.), New Haven, Connecticut 06519