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Transmission electron micrographs of rabbit organs from the mononuclear phagocyte system 6 months after AuNP injection over a range of magnifications. A-C: liver, D-F: spleen, G-I: lymph node, J-L: bone marrow (H: hepatocyte, K: Kuppfer cell, L: lysosome, N: nucleus, S: sinusoid).
