1 Myeloma Unit, Division of Hematology, University of Torino, Azienda Ospedaliero-Universitaria Città della Salute e della Scienza di Torino, Torino, Italy.
2 Clinica di Ematologia, AOU Ospedali Riuniti di Ancona, Ancona, Italy.
3 Università degli Studi di Perugia, Azienda Ospedaliera Santa Maria, Terni, Italy.
4 Division of Hematology, Department of Translational Medicine, University of Eastern Piedmont, 28100, Novara, Italy.
5 Hematology, Department of Translational and Precision Medicine, Azienda Ospedaliera Policlinico Umberto I, Sapienza University of Rome, Rome, Italy.
6 SC di Ematologia e CTMO, Ospedale Oncologico di Riferimento Regionale "A. Businco", ARNAS "G. Brozu", Cagliari, Italy.
7 Padova University School of Medicine, Hematology and Clinical Immunology, Padova, Italy.
8 Division of Hematology, IRCCS "Casa Sollievo della Sofferenza" Hospital, San Giovanni Rotondo, Italy.
9 Hematology, St. Eugenio Hospital ASL Roma 2, Tor Vergata University, Rome, Italy.
10 Division of Hematology, Department of Human Pathology in Adulthood and Childhood, University of Messina, 98122, Messina, Italy.
11 Clinica Ematologica e Unità di Terapie Cellulari, Azienda Sanitaria Universitaria Friuli Centrale (ASUFC), Dipartimento di Area Medica (DAME), Università di Udine, Udine, Italy.
12 SC Hematology, AO Città della Salute e della Scienza, Turin, Italy.
13 Hematology, "Azienda Ospedaliero-Universitaria" and Department of Medicine and Surgery, University of Parma, Parma, Italy.
14 Department of Medicine, Azienda Sanitaria Locale Torino 4, Cirié, Chivasso e Ivrea, Italy.
15 Ematologia, Ospedale San Luigi Gonzaga, Orbassano, Italy.
16 Division of Hematology, AOU Policlinico, University of Catania, Catania, Italy.
17 Divisione di Ematologia, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Università degli Studi di Milano, Milano, Italy.
18 Department of Emergency and Organ Transplantation, ''Aldo Moro'' University School of Medicine, Bari, Italy.
19 Unit of Hematology and Stem Cell Transplantation, AOUC Policlinico, Bari, Italy.
20 Department of Haematooncology, University Hospital Ostrava, Ostrava, Czech Republic.
21 Faculty of Medicine, University of Ostrava, Ostrava, Czech Republic.
22 Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands.
23 Myeloma Unit, Division of Hematology, University of Torino, Azienda Ospedaliero-Universitaria Città della Salute e della Scienza di Torino, Torino, Italy. sarabringhen@yahoo.com.