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Histologic evaluation of resected specimen. The first column represents the hematoxylin-eosin slide of the resected tumor with staining of the tumor nuclei. The second column corresponds to cathepsin B staining of the same specimen. The third column represents microscopic fluorescence imaging capturing areas stained by VGT-309 (green). The bar represents 50 µM. H&E, hematoxylin and eosin; Cat B, Cathepsin B.
