Expression levels of mature miR-27a, miR-23a and miR-24 were highly correlated (Figure S2B–G), and miR-27b and miR-23b expression levels were significantly lower than miR-27a and miR-23a expression in CD34+ HSPCs in all but one acute leukemia tested (Figure S4A, B), confirming a prior report that the miR-23b cluster is not expressed in hematopoietic cells [17]. The gene discussed is CD34; the disease is acute leukemia.