File:Combination-of-contrast-with-stress-echocardiography-A-practical-guide-to-methods-and-interpretation-1476-7120-2-15-S44.ogv
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Combination-of-contrast-with-stress-echocardiography-A-practical-guide-to-methods-and-interpretation-1476-7120-2-15-S44.ogv (Ogg Theora video file, length 1.2 s, 360 × 256 pixels, 758 kbps, file size: 111 KB)