PO-1811: The prognostic value of CD8+ infiltration and PD-L1 expression in salivary gland cancers. (November 2020) - Kesar, N.; Winkelmann, R.; Rödel, F.; Oppermann, J.; Balster, S.; Ghanaati, S.; Brandts, C.; Martin, D.; Rödel, C.; Balermpas, P.; Von der Gruen, J.