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QL restored cardiac function in DOX-induced CHF. (A) M-mode echocardiographic images of each treatment group. (B) Cardiac function was determined by EF, FS, LVIDd and LVIDs and compared among the different groups by echocardiography. (C) Comparison of the hemodynamic parameters LVSP, LVEDP, +dp/dtmax and − dp/dtmax among different groups after QL treatment. *p < 0.05, **p < 0.01 vs. control group. #p < 0.05, ##p < 0.01 vs. CHF group.
