the average final tumor weight and volume in the LV-HNF4α group were 0.01 g and 6.268 mm3, respectively, which was significantly lower than those in normal control group (0.253 g, 234.0571 mm3) and Lenti-GFP group (0.133 g, 71.928 mm3) (P < 0.05) (Figures 7B–D). The gene discussed is HNF4A; the disease is neoplasm.