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Figure 1 Boxplot of the range of log_e-transformed total calcium scores and calcium scores per major coronary artery in patients with ("1") or without ("0") angiographic three-vessel and/or left main CAD. The boxes represent 25th through 75th percentiles, and the lines in the boxes represent the median values. The whiskers show the smallest and largest observed values within 1.5 box-lengths of the 25th and 75th percentiles, respectively. All calcium scores shown in this figure, i.e., total and major coronary artery scores, discriminated between the presence versus the absence of three-vessel and/or left main disease (p < 0.0001 for all comparisons, except LM; p = 0.01). LAD = left anterior descending coronary artery, LCx = left circumflex coronary artery, LM = left main coronary artery, RCA = right coronary artery, total = complete coronary tree.