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Intravital microscopy images of GFP-expressing MDA-MB-231 tumor in a dorsal skinfold chamber after 2, 6, and 24 h after IV injection of Alexa Fluor® 555-labeled QA-NP. Top: Overlays of blood vessels (blue), QA-NP* (red), and MDA-MB-231-GFP tumor cells (green). Bottom: Overlays of blood vessels and QA-NP only.
