1. From the Division of Endocrinology and Metabolic Diseases (R.C.B., E.B.), University of Verona and Azienda Ospedaliera di Verona (Italy); the Department of Electronics and Informatics (M.P.S., C.C.) and the Division of Metabolic Diseases (S.D.P.), University of Padua (Italy); and the Division of Diabetes (R.A.D.), University of Texas Health Science Center and Audie L. Murphy Veterans Administration Hospital, San Antonio, Tex.