Memorial Sloan Kettering Cancer Center - Myeloma Service, Memorial Sloan Kettering Cancer Center - Myeloma Service, University of Milan, Faculty of Medicine, Oncology and Hemato-Oncology Department, Wellcome Sanger Institute, University of Barcelona - Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Essex, Wellcome Sanger Institute, Wellcome Sanger Institute, Wellcome Sanger Institute, University of Milan, Faculty of Medicine, Oncology and Hemato-Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Fondazione IRCCS Istituto Nazionale dei Tumori - Division of Hematology and Bone Marrow Transplantation, University of Milan, Harvard University - Dana-Farber Cancer Institute, University of Nantes, Memorial Sloan Kettering Cancer Center - Myeloma Service, University of California, San Diego (UCSD) - Moores Cancer Center, University of Barcelona, Patologia Molecular de Neoplàsies Limfoides, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Ulm University, IUC-Oncopole, Memorial Sloan Kettering Cancer Center - Myeloma Service, Harvard University - Dana-Farber Cancer Institute, Wellcome Genome Campus - Cancer Genome Project and Memorial Sloan Kettering Cancer Center - Myeloma Service