1. Department of Pathology, Hematopathology Unit, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona, Spain;
2. Institute of Human Genetics, University Hospital Schleswig-Holstein Campus Kiel/Christian-Albrechts University, Kiel, Germany;
3. Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD;
4. Cytogenetic Laboratory, and
5. Department of Pathology, The Maria Skłodowska-Curie Memorial Institute and Oncology Centre, Warsaw, Poland;
6. Department of Pathology, Hematopathology Section and Lymph Node Registry, Christian Albrechts University, Kiel, Germany;
7. Institute of Pathology, University of Würzburg, Würzburg, Germany;
8. Henri Mondor Hospital, Creteil, France;
9. Center for Human Genetics, KU Leuven, Leuven, Belgium;
10. Department of Pathology, Massachusetts General Hospital, Boston, MA;
11. Department of Clinical Pathology, Robert-Bosch-Krankenhaus, and Dr Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany;
12. Department of Hematology, Hematopathology Unit, Hospital Clínic, Barcelona, Spain; and
13. Institute of Pathology, Eberhard-Karls-University of Tübingen, Tübingen, Germany