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Contact: Karen Kreeger
karen.kreeger@uphs.upenn.edu
215-349-5658
University of Pennsylvania School of Medicine
Caption: Blood smear of leukemic cells positive for myeloperoxidase, a marker of myeloid leukemia. Blue cells are negative and brown cells are positive.
Credit: Warren S. Pear, M.D., Ph.D., and Karen Keeshan, Ph.D., University of Pennsylvania School of Medicine; Jon Aster, M.D., Ph.D., Brigham and Women's Hospital
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