1. Hematology Department, University Hospital of Salamanca, IBSAL, CIBERONC, Centro de Investigación del Cáncer-IBMCC (USAL-CSIC), Salamanca, Spain
2. Bing Center for Waldenström’s Macroglobulinemia, Dana-Farber Cancer Institute, Boston, MA, USA
3. Service d’Hématologie Cellulaire, CHRU de Lille, University of Lille, Lille, France
4. Division of Hematology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
5. Haematological Malignancy Diagnostic Service, St James’s University Hospital, Leeds, UK