CD8A and acute myeloid leukemia: AML patients in this study demonstrated no significant differences when compared to HD in frequencies (mean frequency ± SEM) of total CD3+ (ID1) (64.4% ± 2.8 vs. 57.5% ± 2.8), CD4+ (ID2) (52.8% ± 5.4 vs. 56.1% ± 3.8), or CD8+ (ID4) (40.7% ± 5.3 vs. 35.5% ± 3.3) T-cell populations (Fig. 6a).