1. From Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Colorado School of Medicine, Aurora (C.C.L.); CPC Clinical Research, Aurora, CO (C.C.L., C.N.H., W.R.H.); Division of Cardiology, Department of Medicine, University of Colorado School of Medicine, Aurora (C.N.H., W.R.H.); Joslin Diabetes Center, and Harvard Medical School, Boston, MA (A.B.G.).