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(A) Total number of VT (ventricular tachycardia) and VEB (ventricular ectopic beats) episodes during 30 min ischemia in different groups. (B) Total duration of VT episodes during 30 min ischemia in different groups. Data are presented as mean ± SEM.
*P < 0.05, **P < 0.01 vs. Control group. MOE = Melissa officinalis extract.
