Phenotypic reconstitution of total CD8⁺ T cells and A2/Melan-A⁺ CD8⁺ T cells after UCBT. Representative dot plots and pie charts represent median frequencies of naive, central memory (CM), EM, and EMRA CD8⁺ T cells measured ex vivo in the graft inoculum and UCBT recipients with tetramer staining. No A2/Melan-A⁺ T cells were detected ex vivo at 1 to 3 months after UCBT.