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Figure 3 Rates, relative risks, and confidence intervals (CI) of restenosis according to the 10 prespecified variables. P values for the interaction (logistic regression analysis) were only significant for reference vessel size (p = 0.001). BA = balloon angioplasty; B/A = balloon to artery ratio; LAD = left anterior descending coronary artery; RE = restenosis; ST = stent.
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