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各组大鼠心脏HE染色
Pathological changes of the heart tissues in different groups (HE staining, original magnification: ×400). A-D: HE staining in sham group, model group, low-dose group, and high-dose group, respectively. **P < 0.01 vs Sham group; △ P < 0.05, △△P < 0.01 vs model group.
