Clinical outcome according to CD4⁺ immune reconstitution. (A-C) EFS (A), OS (B), and NRM (C) according to successful CD4⁺ IR in all patients. (D) RRM according to successful CD4⁺ IR in myeloid leukemia only. Black lines, successful CD4⁺ IR; red lines, no successful CD4⁺ T-cell IR.