Fig. 1From: Relationship between PD-L1 expression, CD8+ T-cell infiltration and prognosis in intrahepatic cholangiocarcinoma patientsRepresentative immunohistochemical staining of PD-L1 and PD-1 in Intrahepatic Cholangiocarcinoma tissues. A Immunostaining for PD-L1 expression in cancer cells; B Immunostaining for PD-L1 expression in interstitial cells; C Immunostaining for PD-1 expression on TILs. Shown at ×400 original magnificationBack to article page