[1] Univ Klinikum Wurzburg, Med Klin & Poliklin 2, Wurzburg, Germany
[2] Hosp Santa Creu & Sant Pau, Barcelona, Spain
[3] Univ Vita Salute San Raffaele, Milan, Italy
[4] IRCCS San Raffaele Sci Inst, Div Transplantat Immunol & Transplantat Dis, Milan, Italy
[5] Leiden Univ Med Ctr, Dept Hematol, Leiden, Netherlands
[6] Lymphoma Coalit Europe, Madrid, Spain
[7] Univ Rennes, CHU Rennes, INSERM U1236, Rennes, France
[8] Dana Farber Canc Inst, Boston, MA 02115 USA
[9] Sapienza Univ Rome, Bambino Gesu Childrens Hosp, IRCCS, Rome, Italy
[10] Myeloma UK, Edinburgh, Midlothian, Scotland
[11] Royal Free Hosp, UCL Inst Immun & Transplantat, London, England
[12] Univ Hosp Galway, Dept Haematol, Galway, Ireland
[13] Natl Univ Ireland, Galway, Ireland
[14] St Pau Biomed Res Inst, Barcelona, Spain
[15] Jose Carreras Leukemia Res Inst, Barcelona, Spain
[16] Mem Sloan Kettering Canc Ctr, 1275 York Ave, New York, NY 10021 USA
[17] Vrije Univ Amsterdam Med Ctr, Amsterdam UMC, Amsterdam, Netherlands