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Figure 3 Typical hemodynamic measurements during the four experimental conditions. Baseline at 70 and 90 bpm; Ischemia at 70 and 90 bpm. LAP = left atrial pressure, mm Hg; LAD = left anterior descending coronary artery, ml; RVP = right ventricular pressure, mm Hg; LVP = left ventricular pressure, mm Hg; Volume = ml; ECG = electrocardiogram, volts.