Further, the Kaplan-Meier plotter (KM Plotter) tool also depicted a significant association of CMTM6 as well as PD-L1 expression and poor relapse-free survival in ESCC, HNSCC, and lung squamous cell carcinoma (Figure 2J and Supplemental Figure 3G). The gene discussed is CD274; the disease is esophageal squamous cell carcinoma.