By analyzing the published datasets, we demonstrated that the mRNA and protein levels of YTHDF2 were upregulated in human HCC samples compared with normal liver samples (Figure S1A,B, Supporting Information), and high expression of YTHDF2 in HCC was associated with shorter overall survival (OS) and recurrence‐free survival (RFS) (Figure S1C,D, Supporting Information). The gene discussed is YTHDF2; the disease is hepatocellular carcinoma.