Timing of Peripheral Blood Stem Cell Yield: Comparison of Alternative Methods with the Classic Method for CD34⁺ Cell Determination

Figure 4

ROC curves. ROC curves for determination of method sensitivity and specificity at a cut-off value for CD34⁺ cells of 0.020 cells/mL (in peripheral blood). (a) HPC method (), (b) ALDH method (), (c) CD133⁺ method (), and (d) CD34⁺/CD133⁺ method ().

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