Fig. 2From: Role of stromal PD-L1 expression in colorectal liver metastasisStromal PD-L1 expression in CRLM. (a) Positive stromal PD-L1 expression in mononuclear cells. (b) CD3. (c) CD4. (d) CD8. (e) CD68. (f) αSMAMagnification of the boxed area (black) is shown in the insetsBack to article page