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Mean (+ SEM) time to the onset of premature ventricular contractions (PVC), bigeminy, salvos, ventricular tachycardia (VT) and ventricular fibrillation (VF) following intravenous aconitine administration in control and chronic mild stress (CMS) rats. CMS reduced the onset time to PVC, salvo and VT (*P < 0.05 vs. respective control value) following 4 weeks of CMS. Modified from (Grippo et al., 2004); used with permission.
