Research Article

Folate Receptor 4-Expressing T cell Is Associated with Disease-Free Survival in Patients with Esophageal Squamous Cell Carcinoma

Figure 5

Correlation of folate receptor 4 (FR4) expression with PD-L1, PD-1, IL-2, IL-7, IFN-γ, and TNF-α in ESCC patients from TCGA database. FR positive () and FR negative ().