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Figure 5 Quantitative analysis of macrophages (A), smooth muscle cells (B), and combined smooth muscle cell/collagen (C) plaque content. Data are expressed as the mean value ± SEM percent area. *p < 0.05 versus high-cholesterol (HC) diet group. #p < 0.05 versus normal chow diet (ND) group. AT = atherosclerosis; PPAR = perioxisomal proliferator-activated receptor.