1. Department of Pathology; Geneva University Hospital; Geneva Switzerland
2. Department of Pathology and Laboratory Medicine; Temple University School of Medicine; Philadelphia Pennsylvania
3. Department of Pathology; Brigham and Women's Hospital; Boston Massachusetts
4. Harvard Medical School; Boston Massachusetts
5. Department of Pathology; Virginia Commonwealth University Health Systems; Richmond Virginia
6. Institute of Pathology; Locarno Switzerland
7. Department of Pathology; Johns Hopkins Hospital; Baltimore Maryland
8. Department of Pathology; State University of New York Upstate Medical University; Syracuse New York
9. Department of Pathology; Massachusetts General Hospital; Boston Massachusetts