CD4 and acute myeloid leukemia: A similar trend was also found in AML CD4+CD25− T cells (20.40 ± 1.69% vs. 32.47 ± 2.83%, P = 0.0215; 20.40 ± 1.69% vs. 68.93 ± 2.10%, P < 0.0001, respectively).