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a PET and b near-infrared fluorescence images of athymic nude mice bearing SW1222 tumors (white arrows) injected with either site-specifically labeled or traditionally labeled [89Zr]DFO-huA33-Alexa Fluor® 680. In the PET images, the coronal slices intersect the center of the tumors. Figure adapted and reprinted with the permission of Zeglis et al. Copyright 2014 American Chemical Society [18].
