1. From the National Research Institute, Los Angeles (J.P.F.); the Diabetes Research Centre, University of Leicester, and the National Institute of Health Research Leicester Biomedical Research Centre — both in Leicester, United Kingdom (M.J.D.); the Dallas Diabetes Research Center at Medical City, Dallas (J.R.); Centro de Investigaciones Metabólicas, Buenos Aires (F.C.P.M.); and Eli Lilly, Indianapolis (L.F.L., B.K.B., B.L., X.C., K.B.).