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Left ventricular contraction movement, internal diameter, and volume. At 4 weeks after the coronary artery occlusion surgery, echocardiography was performed, and the typical echocardiography images were taken among different groups ((a)–(d)). Internal diameter and volume of the left ventricle show the quantitative analysis data ((e)-(f)). Values are expressed as mean ± SD (n = 7). *P < 0.05, **P < 0.01, versus control. Δ P < 0.05, versus model.
