IRF2 and B-cell chronic lymphocytic leukemia: In order to investigate the association between lnc-IRF2-3 and lnc-KIAA1755-4 expression and the disease-related variables, median expression levels were used as a cut-off to divide the CLL cohort into lnc-IRF2-3 low- and lnc-IRF2-3 high-expressing groups, as well as lnc-KIAA1755-4 low- and lnc-KIAA1755-4 high-expressing groups.