1. Centre for Lymphoid Cancer, BC Cancer Agency, Vancouver, BC, Canada;
2. Institute of Human Genetics, University Medical Center and University of Ulm, Ulm, Germany;
3. Biometric Research Program, National Cancer Institute, Rockville, MD;
4. Institute of Pathology, University of Würzburg and Comprehensive Cancer Center Mainfranken, Würzburg, Germany;
5. Department of Pathology, Robert-Bosch-Krankenhaus and Dr. Margarete Fischer-Bosch Institute for Clinical Pharmacology, Stuttgart, Germany;
6. Department of Laboratory Medicine and Pathology, Mayo Clinic, Scottsdale, AZ;
7. Hematopathology Unit, Hospital Clinic Barcelona, University of Barcelona, Barcelona, Spain;
8. Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain;
9. Department of Pathology, Oregon Health & Science University, Portland, Portland, OR;
10. Department of Pathology, University Health Network, Toronto, ON, Canada;
11. Department of Pathology, Hematopathology Section and Lymph Node Registry, City of Hope Medical Center, Duarte, CA;
12. Department of Laboratory Medicine and Pathology, Cleveland Clinic, Cleveland, OH;
13. Department of Pathology, University of Nebraska Medical Center, Omaha, NE;
14. Institute for Cancer Research, Oslo University Hospital, Oslo, Norway;
15. K.G. Jebsen Centre for B Cell Malignancies, Faculty of Medicine, University of Oslo, Oslo, Norway;
16. Division of Cancer Medicine, Department of Oncology, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway;
17. Center for Cancer Research, Lymphoid Malignancies Branch, National Cancer Institute, Bethesda, MD; and
18. Hematopathology Section, National Cancer Institute, Bethesda, MD