1. Department of Biological Hematology and Immunology, Assistance Publique Hôpitaux de Paris (AP-HP), Groupe Hospitalier Mondor, Créteil, France;
2. Institut Mondor de Recherche Biomédicale–INSERM U955, Equipe 9, Henri Mondor Hospital, Créteil, France;
3. Université Paris-Est, Créteil, France;
4. Departments of Pathology, Hematopathology Section and Lymph Node Registry, University Hospital Schleswig-Holstein, Kiel, Germany;
5. Department of Pathology, Hospices Civils de Lyon, Lyon-1 University, Pierre Benite, France;
6. INSERM U918, Institute for Research and Innovation in Biomedicine, Centre Henri Becquerel, Rouen, France;
7. Department of Pathology, Hôpital Saint-Louis, AP-HP, Paris, France;
8. Hospices Civils de Lyon, Lyon-1 University, Centre National de la Recherche Scientifique (CNRS), Unite Mixte de Recherche (UMR) 5239, Pierre Benite, France;
9. CHU de Dijon, Dijon, France;
10. Centre Hospitalo-Universitaire Brabois, Nancy, France;
11. Lymphoid Malignancies Unit, GH Mondor, AP-HP, Creteil, France;
12. Institut de Cancérologie Gustave Roussy, Villejuif, France;
13. Department of Clinical Hematology, Hôpital Saint-Louis, AP-HP, Paris, France;
14. Department of Internal Medicine III, University Hospital Munich, Munich, Germany;
15. Biological Hematology, Necker Hospital, Paris Descartes, AP-HP, INSERM 1151, Institut Necker Enfants Malades, Paris, France;
16. Second Medical Department, University Hospital Schleswig-Holstein, Kiel, Germany;
17. Department of Clinical Hematology, University Paris Descartes, CNRS, UMR 8147, Necker Hospital, Paris, France; and
18. Department of Medical Informatics, Biometry, and Epidemiology, University of Munich, Munich, Germany