CD44 and hepatocellular carcinoma: To construct a risk model based on mTOR/Hippo genes for predicting the prognosis of HCC patients, we identified a risk model consisting of 12 genes, including CD44, FLT3, MAP4K1, LIN28B, WNT8A, GPC1, EIF4E, KIT, CYCS, PPARGC1A, BNIP3 and RRAGD (Figs. 2A–B and S1A–B).