Fig. 3From: A comparison of the local immune status between the primary and metastatic tumor in colorectal cancer: a retrospective studyA comparison of the density of each TIL subset between the primary tumor and the metastatic tumor (a: CD4, b: CD8, c: FOXP3). For FOXP3 only, the density of TILs in the primary tumor was significantly higher than that in the metastatic tumor (*: p < 0.05)Back to article page