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Course of responses in the QuantiFERON-CMV assay in 56 liver transplant recipients. Results of the QuantiFERON-CMV assay were analyzed from the end of antiviral prophylaxis until six months thereafter. The time after the end of prophylaxis correlated significantly with the concentration of IFN-γ, as analyzed by Spearman correlation analysis. The bold, continuous line indicates the regression line, the dashed lines the 95% confidence interval.
