Resting global and regional left ventricular contractility in patients with heart failure and normal ejection fraction: insights from speckle-tracking echocardiography

Heart ◽  
2010 ◽  
Vol 97 (4) ◽  
pp. 287-294 ◽  
Author(s):  
G. W.-K. Yip ◽  
Q. Zhang ◽  
J.-M. Xie ◽  
Y.-J. Liang ◽  
Y.-M. Liu ◽  
...  
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