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Fig. 2.

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Fig. 2. Tricuspid regurgitation (TR) by echocardiography in pulmonary arterial hypertension rat model. The TR was measured from the termination of TR to the onset of the subsequent TR tracing. TR velocity was significantly higher in the monocrotaline group group (4.48±0.34 m/sec ΔP 80.81±12.12 mmHg). Heart rate was 265/min.

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