1 Universitätsklinikum Würzburg, Medizinische Klinik und Poliklinik II, Würzburg, Germany.
2 Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
3 Vita-Salute San Raffaele University and Division of Transplantation, Immunology and Transplantation Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy.
4 Department of Hematology, Leiden University Medical Center, Leiden, the Netherlands.
5 Lymphoma Coalition Europe, Madrid, Spain.
6 CHU de Rennes, Université de Rennes, INSERM U1236, Rennes, France.
7 Dana-Farber Cancer Institute, Boston, Massachusetts, USA.
8 IRCCS, Bambino Gesù Children's Hospital, Sapienza University of Rome, Rome, Italy.
9 Myeloma UK, Edinburgh, UK.
10 UCL Institute of Immunity and TransplantationRoyal Free Hospital, London, UK.
11 Department of Haematology, University Hospital Galway and National University of Ireland, Galway.
12 Sant Pau Biomedical Research Institute and Jose Carreras Leukemia Research Institute, Barcelona, Spain.
13 Memorial Sloan Kettering Cancer Center, New York, New York, USA.
14 Amsterdam UMC, VU Medical Center, Amsterdam, the Netherlands.