Lymphocyte recovery. Boxplots for lymphocyte subset for each point. The bottom and top of the box are the 25th (Q1) and 75th (Q3) percentiles of the data, and the band near the middle of the box is the median. The upper whisker is located at the smaller of the maximum value and Q3 + 1.5 IQR, where IQR = Q3 − Q1, the box length. The lower whisker is located at the larger of the smallest value, and Q1 − 1.5 IQR. Observations above Q3 + 1.5 IQR are shown by dots. (A) CD3⁺CD4⁺ cells/µL. (B) CD3⁺CD8⁺ cells/µL. (C) CD19⁺ cells/µL. T cells were isolated by negative selection using RosetteSep T-cell enrichment (StemCell Technologies; Vancouver, BC). T- and B-cell subsets were quantified using the TetraCXP system (antibodies recognizing CD45, CD3, CD4, CD8, and CD19) and a FC500 flow cytometer (Beckman Coulter, Indianapolis, IN).