1. Department of Pathology & Laboratory Medicine/Calgary Laboratory Services, Calgary, AB;
2. Hematopathology Section, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD;
3. Division of Gastroenterology, University of Calgary, Calgary, AB;
4. Metabolism Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD; and
5. Department of Pathology Massachusetts General Hospital, Boston, MA