From the CN-AML group we selected the bottom 30% of the whole GFI1 expression range as low expressers (GFI1low, n = 27) and the top 30% as high expressers (GFI1high, n = 29), which closely encompasses the range of GFI1 expression surveyed by Hönes et al. 18 (Fig. 1B). Here, GFI1 is linked to acute myeloid leukemia.