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Figure 3 Comparison of myocardial blood flow in the left anterior descending coronary artery zone at the 30 µg·kg–1·min–1 dobutamine infusion. Note that endocardial, midwall and transmural blood flows in dogs with larger infarct size (group 2) were significantly lower than values in dogs with a smaller infarct size (group 1). Endocardial flow in group 2 failed to increase from baseline at peak dobutamine infusion. *p < 0.05 vs. group 1;  p < 0.01 vs. group 1.
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