IRF8 and acute lymphoblastic leukemia: A low level of IRF8 was also associated with shorter relapse‐free survival (RFS) (p < 0.05), elevated white blood cell (WBC) counts (p < 0.05), decreased platelet (PLT) counts (p < 0.01) and increased bone marrow (BM) blasts (p < 0.01) in T‐ALL patients (Figure S1A–H, Supporting Information).