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Concentration-response curve and maximal response to acetylcholine (ACh, A, C) and sodium nitroprusside (SNP, B, D) in iliac artery with intact endothelium in sedentary (SD) and trained (TR) groups. Data are expressed as mean ± SEM. Experimental n is represented in parentheses. *Different SD; P<0.05 (unpaired t test).
