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Figure 1 Left ventricular ejection fraction (LVEF) calculated by angiography at six weeks after collagen or saline injection directly into the scar area of myocardial infarction in rats. For rats that received collagen, LVEF was 48.4 ± 1.8% (n = 11). For rats that received saline, LVEF (40.7 ± 1.0%, n = 10) was significantly lower than that in the collagen-treated group (*p = 0.002).
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