Hierarchical clustering (Fig. 3A) and barplots (Figs. 3B and S7–S35) of the inclusion levels of these 36 selected cassette exons showed that hFK1, the early-stage fetal fraction, has a splice isoform profile that is similar to the Wilms’ tumor xenografts (WT37, WT14, and WT11). This evidence concerns the gene FOXG1 and Nephroblastoma.