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ATF3 expression levels in the coronary artery. A, B Representative Western blot images and quantitative analysis of ATF3 expression levels. C, D Representative immunohistochemical images and quantitative analysis of ATF3 expression in each group (scale bar = 50 μm). All experiments were repeated at least three times. The data are expressed as the mean ± SD (n = 12 per group). **P < 0.01 versus the control group; ##P < 0.01 versus the CHD group
