[1] Sanquin Res, Ctr Clin Transfus Res, Amsterdam, Netherlands
[2] Univ Amsterdam, Amsterdam Univ Med Ctr UMC, Dept Hematol, Amsterdam, Netherlands
[3] Haugesund Hosp, Dept Res & Innovat, Haugesund, Norway
[4] Harvard Med Sch, Bing Ctr Waldenstroms Macroglobulinemia, Dana Farber Canc Inst, Boston, MA 02115 USA
[5] Catharina Hosp, Dept Hematol, Eindhoven, Netherlands
[6] Ca Granda Osped Maggiore Policlin, Fnd Ist Ricovero & Cura Carattere Sci IRCCS, Hematol Unit, Milan, Italy
[7] Univ Milan, Milan, Italy
[8] Univ Milan, Dept Oncol & Oncohematol, Milan, Italy
[9] Natl & Kapodistrian Univ Athens, Sch Med, Dept Clin Therapeut, Athens, Greece
[10] Leiden Univ, Dept Hematol, Med Ctr, Leiden, Netherlands
[11] Sanquin, Dept Immunohematol Diagnost, Amsterdam, Netherlands
[12] Odense Univ Hosp, Dept Hematol, Odense, Denmark
[13] Univ Piemonte Orientale, Dept Translat Med, Div Hematol, Novara, Italy
[14] Univ Coll London Hosp NHS Fdn Trust, UCLH Ctr Waldenstoms Macroglobulinemia & Rela, London, England
[15] Lymphoma & Myeloma Ctr Amsterdam, Amsterdam, Netherlands