Fig. 1From: Multidimensional, quantitative assessment of PD-1/PD-L1 expression in patients with Merkel cell carcinoma and association with response to pembrolizumabTumor regions were annotated on high-resolution digital scans of slides stained by IHC/IF. a Peritumoral (PT, 100 um) and intratumoral (IT) regions were annotated. b Representative images for CD8 (brown), PD-1 (green) and PD-L1 (brown) staining from a non-responder (NR) and complete responder (CR)Back to article page