Figure 1.

(a) Strong punctate and granular cytoplasmatic staining of intratumoral lymphocytes by Ventana SP142 assay. PD-L1 expression was considered positive if staining of any intensity was noted in tumor-infiltrating immune cells covering ≥1% of the tumor area occupied by tumor cells, the associated intratumoral region, and contiguous peritumoral stroma. (b) Strong cytoplasmic immunohistochemical staining of NY-ESO-1 in tumor cells. NY-ESO-1 expression was considered positive if ≥1% of tumor cells showed cytoplasmic and/or nuclear positivity.