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Figure 5


Fig. 5. Absolute changes in heart rate variability (HRV) frequency bandwidth, in control animals and in animals after incubation with (A) propranolol (ß-adrenergic antagonist, 10–5 mol l–1) and atropine (muscarinergic antagonist; 10–5 mol l–1) or (B) with each agonist separately. Asterisks indicate statistically significant differences between incubated and control animals (P<0.05). N=7 (per stage).





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