To further demonstrate the role of WAS in HB oncogenesis, we investigated expression levels of WAS in HB and normal liver using the gene expression dataset from Sumazin et al. (2017), and observed WAS down-regulated in HB, as compared with normal controls (Figures 5A,B, one-side Wilcoxon rank-sum test, P-value < 0.05). This evidence concerns the gene WAS and hemoglobin measurement.