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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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Fluorescence inverted microscopy images (A) and confocal microscopy images (B) of HepG2 tumor spheroids upon incubation with NPs-EPI, NPs-EPI/HAase (combined with 0.05, 0.1, 0.5, 1.0 mg/mL HAase, respectively). Scale bars for A, B represent 200 μm and 50 μm, respectively.