This figure is lower than that reported by Angelova et al. [8] (164/183 (89.6%)); Djokic et al. [17] detected 31% strong expression, 61% moderate expression, and 8% negative, and Bras et al. [18] who detected CD123+ expression in 85% of B-cell precursor (BCP) ALL cases (224/262). The gene discussed is IL3RA; the disease is acute lymphoblastic leukemia.