From the Department of Pathology
University of Oklahoma Health Science Centers, Oklahoma City, OK; Department of Pathology, Evanston Northwestern Healthcare, Evanston, IL; Department of Laboratory Medicine and Cancer Center, University of California, San Francisco, CA; Department of Pathology, RUSH North Shore Medical Center, Skokie, IL; and the Geraldine Brush Cancer Research Center of the California Pacific Medical Center, San Francisco, CA.