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Comparison of CMV ELISPOT and QuantiFERON in 195 pregnant and nonpregnant CMV-seropositive and -seronegative women. CMV ELISPOT values were limited to 1,000 spots/2 × 105 PBMCs while CMV QuantiFERON was limited to 10 IU of IFN-γ/ml. The dashed line indicates the lowess local regression-smoothing model. The bandwidth is 0.8.
