This is part of the video demos for the Alpha Trak meter. What's interesting here is that the video shows you how to obtain a blood sample from a dog on not just the ear, but also shows the lip stick and callus stick methods.
http://www.alphatrakmeter.com/en_US/...ple_video.html
http://www.alphatrakmeter.com/en_US/...ple_video.html
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