BACH2 and B-cell chronic lymphocytic leukemia: We found no significant correlation between expression levels of BACH2 and BCL6 with the common CLL prognostic factors, including clinical staging, age, and cytogenetic abnormalities (13q14, 11q23, and 17p13 deletions), but survival analysis showed that a low RNA expression of BACH2 and BCL6 was related to a poor outcome in the 13q- (Figure 2C and Figure 3C) and 11q-deleted subgroups (Figure 2D and Figure 3D).