“…The prevalence of antithyroid antibodies in diabetic patients has been variously reported as ranging from 8% to 22% (Pettit, Landing and Gest, 1961;Landing et al, 1963;Whittingham et al, 1971;Goldstein, Drash and Blizzard, 1970;MacCuish and Irvine, 1975. The demonstration of islet-cell antibodies in diabetics (Bottazzo, Florin-Christensen and Doniach, 1974) has led to the concept of distinct types of diabetes mellitus based on the presence or absence of autoimmune markers (MacCuish and Irvine, 1975).…”