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Figure 1 Comparison of the cumulative distribution of the minimal luminal diameter (MLD) between all 3 groups (A = placebo; B = low dose; C = high dose) before and after stenting and at 6-month and 2-year follow-up. Minimal luminal diameter by quantitative coronary angiographic analysis in each group showed significant changes over time (p < 0.001), and these serial changes of MLD were significantly different among the 3 groups (p = 0.002).