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Figure 2 Bar graph showing the relaxing effect of phloretin (5, 10, 20 and 40 µM) on rabbit coronary artery rings with (n = 6) and without (n = 6) endothelium. Rings were precontracted with K+ (30 mM). Data are expressed as percentage relaxation of contraction induced by K+ (mean ± SEM). Control indicates a time-matched equivalent volume of solvent (n = 12–14). *indicates significant differences in comparison with control; * = p < 0.05; *** = p < 0.001.
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