PO-0999: Deciphering the tumor microenviroment based on PD-L1 expression and CD8 + TILs density in LA-NSCLC. (November 2020) - Käsmann, L.; Gennen, K.; Taugner, J.; Eze, C.; Karin, M.; Roengvoraphoj, O.; Neumann, J.; Tufman, A.; Orth, M.; Reu, S.; Belka, C.; Manapov, F.