![](http://www.alamy.com/thumbs/6/AB090F84-01B8-42F8-A5F8-20E0A1A66CE8/E04553.jpg)
Blue Electrocardiography Heart Beat Pulse on Graph.
Size: 4040px × 3010px
Photo credit: © Michael Burrell / Alamy / Afripics
License: Royalty Free
Model Released: No
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