SIRT2 and squamous cell lung carcinoma: The lung adenocarcinoma cohort based on TCGA via TIMER2.0, GEPIA, and UALCAN (Figures 1D, F, H) and (GSE31210) (Figure 1J) demonstrated that higher SIRT2 expression level correlates with better OS, and better relapse-free survival (RFS) (Figure 1K) but there is nonsignificant different in all lung squamous cell carcinoma cohorts via various databases (Figures 1E, G, I).