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Comparison of T-cell subsets in human PB and xenografted NSG mice. PB of NSG mice (n = 8) transplanted with lentivirally transduced UCB CD34+ cells at 20 wk posttransplantation and human PB control samples (n = 7, female, ages 20–52 y) were analyzed for the expression of CD45RO and CD45RA in the CD4+ and CD8+ T cells by flow cytometry. Wilcoxon P values smaller than 0.05 are indicated with an asterisk.
