Effect of TLI + ATG on circulating T-cell subsets. Absolute T-cell subset population size pre-TLI (x-axis) and immediately post-TLI (y-axis) with plotted linear regression (solid lines, constrained through 0,0) for CD3, CD4, CD8, and NKT-cell subsets. Dashed line representative of a population with no change (y = x) in population size between pre-TLI and immediately post-TLI (A). Boxplot of fold decrease in CD3, CD4, CD8, and NKT-cell populations (median, thick line; quartiles, box; range, whiskers; outliers, circle; B).