1. 1Department of Hematology, University Hospital of Reims, Reims, France
2. 2Sorbonne Université, Hematology, Pitié-Salpêtrière Hospital, Paris, France
3. 3Department of Hematology, University Hospital of Besançon, Besançon, France
4. 4Department of Hematology, Hôpital Cochin, Paris, France
5. 5Department of Hematology, Hôpital Saint Louis, Paris, France
6. 6Department of Hematology, University Hospital of Nantes, Nantes, France
7. 7Department of Hematology, University Hospital of Clermont-Ferrand, Clermont-Ferrand, France
8. 8Department of Hematology, Hôpital Necker, Paris, France
9. 9Department of Hematology, University Hospital of Nancy, Nancy, France
10. 10Department of Hematology, University Hospital of Poitiers, Poitiers, France
11. 11Department of Hematology, University Hospital of de Bordeaux, Bordeaux, France
12. 12Department of Hematology, Hospices Civils de Lyon, Pierre Bénite, Lyon, France
13. 13Medical and Scientific Department, Lymphoma Academic Research Organisation, Hôpital Lyon-Sud, Pierre-Bénite, France
14. 14Bing Center for Waldenström Macroglobulinemia, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
15. 15Division of Hematology/Oncology and Columbia Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY
16. 16Department of Hematology, Institut Curie, Paris, France
17. 17Department of Hematology, University Hospital of Rennes, Rennes, France