optimized PD-L 1 scoring of gastric Cancer - are biopsies able to map the actual PD-L 1 Status of the entire Tumor?

Schomig-Markiefka, B; Eschbach, J; Scheel, A; Pamuk, A; Rueschoff, J; Zander, T; Buttner, R; Schroder, W; Bruns, C; Loser, H; Alakus, H; Quaas, A

ONCOLOGY RESEARCH AND TREATMENT, 2022; 45 (SUPPL 3): 90