1. Division of Diabetes, Endocrinology, and Metabolism and Molecular Physiology and Biophysics (L.A.C., M.A.G., M.G.), Vanderbilt University Medical Center, Nashville, Tennessee 37232
2. Departments of Medicine (Y.A.O., M.G.), Nashville, Tennessee 37232
3. Department of Orthopaedic Surgery (R.A.D., K.M.L., A.E.), David Geffen School of Medicine at UCLA, University of California, Los Angeles, California 90095
4. Regeneron Pharmaceuticals, Inc. (D.M.V., A.J.M., G.D.Y., A.E.), Tarrytown, New York 10591
5. Center for Cell and Vascular Biology (D.R.B.), Children’s Research Institute, The Ohio State University, Columbus, Ohio 43205