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Effect of QSYQ on cardiac functional parameters. (A): Representative M-mode images by echocardiography; (B): Left ventricular ejection fraction, LVEF (%); (C): Left ventricular fraction shortening, LVFS (%); (D): Left ventricular end diastolic diameter, LVIDd (mm); (E): Left ventricular end systolic diameter, LVIDs (mm), n = 4 per group. Data are expressed as mean ± SD. *p < 0.05, **p < 0.01.
