1. Medizinische Klinik und Poliklinik III, Klinikum der Universität München, LMU München, Germany;
2. Department of Internal Medicine, University Hospital Centre Zagreb, Zagreb, Croatia;
3. Oncology Unit, Humanitas/Gavazzeni Clinic, Bergamo, Italy;
4. Department of Adult Haematology, Paris Descartes University, Paris, France;
5. University Medical School of the Johannes Gutenberg-University, Mainz, Germany;
6. Department of Oncology, Lund University, Lund, Sweden;
7. CHU Nantes, Nantes, France;
8. Institut Gustave Roussy, Villejuif, France;
9. General Hospital, Charles University, Praha, Czech Republic;
10. San Bortolo Hospital, Vicenza, Italy;
11. Maria Sklodowska-Curie Institute Oncology Centre, Warszawa, Poland;
12. Clinica Ematologica, Centro Trapianti e Terapie Cellulari “Carlo Melzi,” University of Udine, Udine, Italy;
13. Institute of Hematology “Seràgnoli,” University of Bologna, Bologna, Italy