Figure 4. Effects of clotrimazole (CLO, 0.1 mM), metyrapone (METY, 1 mM), and SKF525a (SKF, 0.1 mM) on the endothelium-derived hyperpolarizing factor-mediated relaxant response to acetylcholine (ACh). **P < 0.01 versus control (n = 6-12). Where no error bar is shown, SEM falls within the dimensions of the symbol. CON = control.