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Figure 2 Representative magnetic resonance images of the abdominal aorta showing progression in the high-cholesterol diet group (upper panels) and regression in the normal chow diet plus simvastatin plus peroxisomal proliferator-activated receptor-gamma agonist group (lower panels). The raw images at atherosclerosis (AT) baseline (A, F) and at the end of treatment (B, G), as well as the analyzed traced images at AT baseline (C, H) and at the end of treatment (D, I), are shown for the respective treatment groups. The right panels (E, J) show the matched histologic section at the end of treatment.