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Chemical structure of the 5-HT2A agonist TCB-2 and mean contractile responses of mesenteric artery (MA; n = 7), mesenteric vein (MV; n = 7), ruminal artery (RA; n = 6), and ruminal vein (RV; n = 6) to increasing concentrations of TCB-2. Graphical points represent the mean and bars represent the SEM.
