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Figure 3 The effects of two episodes of sublethal stimuli and the recovery interval on the size of the myocardial infarct (open bars; mean ± SEM) and the incidence of ventricular fibrillation (VF) (solid lines). Between 7 and 10 rats were included in each group. "S" indicates the values for sham-control rats that did not receive sublethal stimuli. *p < 0.05 vs. sham-control rats. TNF- = tumor necrosis factor-alpha.