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. 2020 Aug 24;15:6311–6324. doi: 10.2147/IJN.S257164

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© 2020 Chen et al.

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Tumor penetration behavior of NPs-DiD studied by confocal microscopy. The nuclei was stained with DAPI (blue), HA was stained with HABP (green), and NPs-DiD was presented in red. Scale bar represents 100 μm.