Contact: Karen Kreeger
University of Pennsylvania School of Medicine
Caption: A previously unknown shape for red blood cells in contracted clots. The red blood cells can be compressed into many-sided, closely-packed polyhedral structures instead of their free-flowing bi-concave, disc shape.
Credit: John Weisel, PhD, Perelman School of Medicine; Blood, Prepublished online December 13, 2013; doi:10.1182/blood-2013-08-523860
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