EFNA3 and hepatocellular carcinoma: As shown in Figure 6, the expression of EFNA3 was evidently negatively related to stromal scores (R = −0.27, p = 2.1e-07) and ESTIMAT scores (R = −0.13, p = 0.0099) but positively related to tumor purity (R = 0.13, p = 0.0099) in HCC (Figures 6A–D).