Fig. 1From: Enrichment of the embryonic stem cell reprogramming factors Oct4, Nanog, Myc, and Sox2 in benign and malignant vascular tumorsRepresentative images of Oct4 staining in normal and vascular tumor tissues. Immunopositivity for Oct4 protein is represented by brown staining. Positive control (left panel) = human testicle; negative control (right panel) = human testicle with no added primary antibody. 400× total magnification for each imageBack to article page