Differential lytic effect of residual ATG exposure on T-cell IR in CB or BM recipients. The lytic effect of residual ATG exposure on T cells is depicted in patients who received CBT or BMT. ATG exposure is depicted as area under the curve after HCT with 95% confidence intervals (red line, gray area), with T-cell reconstitution evaluated as mean cell amounts over time with 95% confidence intervals (blue line, gray area).