Figure 6B showed the selective analysis of HIF-1α and YY1 co-expression, where significant correlation was found for ALL-B samples (** p < 0.0011, r = 0.3597). These results are consistent with our results showed in Figure 1 where we demonstrated that HIF-1α expression and YY1 expression are positively correlated in samples derived from pediatric ALL patients. The gene discussed is YY1; the disease is acute lymphoblastic leukemia.