File:Combination-of-contrast-with-stress-echocardiography-A-practical-guide-to-methods-and-interpretation-1476-7120-2-15-S19.ogv
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Combination-of-contrast-with-stress-echocardiography-A-practical-guide-to-methods-and-interpretation-1476-7120-2-15-S19.ogv (Ogg Theora video file, length 0.4 s, 360 × 256 pixels, 3.96 Mbps, file size: 203 KB)