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Cross-section through (a) brain, (b) myocardium, (c) pancreas, (d) liver, (e) lungs, (f) spleen, and (g) kidney from control mice injected with saline solution and harvested at 10 days after intravenous administration; normal morphology; Hematoxylin–Eosin staining; 400× magnification, scale bar 50 μm.
