1. Department of Microbiology and Immunology, Temple University School of Medicine, Philadelphia, PA;
2. Center for Stem Cell Biology and Regenerative Medicine, University of Maryland School of Medicine, Baltimore, MD;
3. Paul O'Gorman Leukemia Research Centre, University of Glasgow, Glasgow, UK;
4. Department of Molecular Genetics, University of Lodz, 90–236 Lodz, Poland;
5. Moulder Center for Drug Discovery Research, Temple University School of Pharmacy, Philadelphia, PA;
6. Department of Laboratory Medicine, University of California San Francisco, San Francisco, CA;
7. Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA; and
8. Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD