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Comparison of HBsAg levels in CHB patients at different phases defined by SS or DS (A). ROC curve for HBsAg levels and liver activity (B). AUROC = area under the ROC curve, CHB = chronic hepatitis B, CI = confidence interval, DS = = dual standard, ENH = HBeAg negative hepatitis, HBsAg = hepatitis B surface antigen, IC = immune-clearance, IT = immune-tolerance, LR = low-replicative, ROC = receiver operating characteristic, SS = single standard, Std = standard.
