1. Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109
2. Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA 23284
3. Departments of Pathology and Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
4. Robert H. Lurie Comprehensive Cancer Center of Northwestern University, Chicago, IL 60611
5. Department of Surgery, Beth Israel Deaconess Medical Center, Boston, MA 02115