DDX4 and thalassemia: Nevertheless, upon closer inspection, an interesting pattern appears: Firstly, in the case of the two 7-year-old patients with ß-thalassemia major, the proportion of the total number of DDX4-positive cells was approximately 100 cells/mm2 higher than the proportion of the total number of PIWIL4-positive cells (see 1st and 2nd blue bars in Figure 6g vs. Figure 6h, and 1st vs. 2nd line of the calculated values in Figure 6i).