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Connection between ECG and electrical activity of the heart

Stock Photo:
Image ID: 76386145
Release Information: N/A
457x500 6.3"x6.9" (72dpi) 221 KB
913x1000 3.0"x3.3" (300dpi) 684 KB
4201x4601 14.0"x15.3" (300dpi) 2.4 MB
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