Fig. 3From: Clinical evaluation of an automated TSI bridge immunoassay in the diagnosis of Graves’ disease and its relationship to the degree of hyperthyroidismROC analysis of TSI and TRAb assays to diagnose GD. (a) TSI: The area under the curve (AUC) was 0.991. The cut-off value was 0.577 IU/L. (b) TRAb: AUC 0.984, cut-off value 1.38 IU/LBack to article page