The comparison between acute lymphoblastic leukemia (n=13, mean rank 12.77), acute myeloblastic leukemia (n=23, mean rank 18.17) and the control group (n-8, mean rank 9.75) showed no significant differences in the level of CA9 gene expression (p value=0.08) (Figure 1). Here, CA9 is linked to acute lymphoblastic leukemia.