HOW DO THEY DO THAT? Take & Transfer Blood for Testing - NBCNews.com

NBCNews.com

HOW DO THEY DO THAT? Take & Transfer Blood for Testing NBCNews.com HOW DO THEY DO THAT? Take & Transfer Blood for Testing. In the Steven Avery case, a vial of blood is a source of controversy. So we asked the Director of the Center for Phlebotomy Education, Dennis Ernst MT, for a demonstration of how blood is drawn ... and more »

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