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. 2013 Oct 7;8(10):e76612. doi: 10.1371/journal.pone.0076612

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© 2013 Pang et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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a, b, c) targeting group; d, e,f) nontargeting group. Images assignment: green: EGFP fluorescence, blue: nucleus. The image on the right is an overlay of the two fluorescent colors. Confocal laser scanning microscopic images of frozen sections showed that more EGFP fluorescence was observed in the targeting group.