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A, heart weight (HW), lung weight (LW), heart-to-body weight ratio (H/B) and lung-to-body weight ratio (L/B). B, echocardiography measurements. LVIDd, left ventricular internal diameter in end-diastole. C, ECG intervals before and after autonomic blockade. Means±SEM, *P<0.05, †P<0.001. White bars, control animals; black bars, heart failure animals.
