Similarly, as shown in Figure 3B, a higher proportion of CD20 expression was significantly correlated with worse OS for B‐ALL patients with these factors including greater than 35 years old, Ph‐negativity, and no allo‐HSCT treatment, which were defined as inferior prognosis (all p‐values < 0.05). This evidence concerns the gene MS4A1 and acute lymphoblastic leukemia.