1. Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston MA
2. Cancer Diagnosis Program, National Cancer Institute, National Institutes of Health, Bethesda, MD
3. Department of Pathology, Oregon Health Sciences University, Portland, OR
4. Department of Pathology, Thomas Jefferson University, Philadelphia, PA
5. Department of Soft Tissue Pathology, Armed Forces Institute of Pathology, Washington, DC
6. Department of Pathology and Dermatology, College of Physicians and Surgeons, Columbia University, New York, NY
7. Department of Cellular Pathology and Genetics, Armed Forces Institute of Pathology, Washington, DC
8. Department of Gastrointestinal Pathology, Armed Forces Institute of Pathology, Washington, DC
9. Department of Pathology, University of Washington Medical Center, Seattle, WA
10. Department of Pathology, Suburban Hospital, Bethesda, MD
11. Department of Pathology & Laboratory Medicine, Emory UniversityHospital, Atlanta, GA