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- [27] An enhanced method for left ventricular volume and ejection fraction by triggered harmonic contrast echocardiography INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING, 2001, 17 (04): : 253 - 261
- [29] An enhanced method for left ventricular volume and ejection fraction by triggered harmonic contrast echocardiography The International Journal of Cardiovascular Imaging, 2001, 17 : 253 - 261