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Figure 1 Percent change in mean luminal diameter of the left anterior descending coronary artery (A) and circumflex artery (B) from baseline, in response to intracoronary acetylcholine infusion. *p = 0.02 versus balloon angioplasty and directional atherectomy groups. Open triangle = Stent group. Closed circle = Balloon angioplasty group. Open square = Directional atherectomy group.
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