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H&E-stained slices of tumors harvested from different groups of mice taken 1 day after IV administration.
Notes: 1–5 represent Gem group, P@ (L+) group, Gem-HSA-NPs group, P@-Gem-HSA-NPs (L−) group, and P@-Gem-HSA-NPs (L+) group, respectively. Bar: 100 μm; magnification ×200.
Abbreviations: Gem, gemcitabine; H&E, hematoxylin and eosin; HSA, human serum albumin; IV, intravenous injection; NPs, nanoparticles; P@, pheophorbide-a.
