1. Institute for Biomedical Research August Pi i Sunyer, Barcelona, Spain;
2. Centro de Investigación Biomédica en Red de Cáncer, Madrid, Spain;
3. Hematopathology Unit-Laboratory of Pathology, Hospital Clinic of Barcelona, University of Barcelona, Barcelona, Spain;
4. Hematology Department, Hospital Clinic of Barcelona, Barcelona, Spain;
5. Pathology Department and
6. Hematology Department, IMIM-Hospital del Mar, Barcelona, Spain;
7. Servei d'Hematologia, Hospital Mútua de Terrassa, Terrassa, Spain;
8. Institute of Pathology, University of Würzburg, Würzburg, Germany;
9. Comprehensive Cancer Center Mainfranken, Würzburg, Germany;
10. Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD;
11. Centre for Lymphoid Cancer, British Columbia Cancer Agency, Vancouver, BC, Canada;
12. Department of Pathology, Toronto General Hospital, Toronto, ON, Canada;
13. Department of Clinical Pathology, Robert-Bosch-Krankenhaus and Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany; and
14. Department of Pathology, Mayo Clinic, Scottsdale, AZ