Local and abscopal responses in advanced intrahepatic cholangiocarcinoma with low TMB, MSS, pMMR and negative PD-L1 expression following combined therapy of SBRT with PD-1 blockade.
Programmed death ligand 1 expression in human intrahepatic cholangiocarcinoma and its association with prognosis and CD8<sup>+</sup> T-cell immune responses.