1. Experimental Hematooncology Department, Medical University of Lublin & Hematology Department, St. John’s Cancer Center, 20-093 Lublin, Poland
2. Department of Hematology, Transplantation and Internal Medicine, Medical University of Warsaw, 02-091 Warsaw, Poland
3. Department of Nephrology, Hypertension and Internal Medicine, University of Warmia and Mazury, 10-719 Olsztyn, Poland
4. Department of Internal Diseases, Clinical Department of Rheumatology, 10th Military Research Hospital and Polyclinic IPHC in Bydgoszcz, 85-681 Bydgoszcz, Poland
5. Internal Department, Geriatric Unit, John Paul II Western Hospital in Grodzisk Mazowiecki, 05-825 Grodzisk Mazowiecki, Poland
6. College of Family Physicians in Poland, 00-209 Warsaw, Poland
7. HTA Registry, 30-552 Krakow, Poland
8. Plasma Cell Dyscrasia Center, Department of Hematology, Faculty of Medicine, Jagiellonian University Medical College, 31-007 Krakow, Poland
9. Department of Hematology, Poznan University of Medical Sciences, 60-512 Poznan, Poland
10. Department of Hematology, Blood Neoplasms and Bone Marrow Transplantation, Wroclaw Medical University, 50-556 Wroclaw, Poland
11. Department of Lymphoid Malignancies, Maria Sklodowska-Curie National Research Institute of Oncology, 00-001 Warsaw, Poland
12. Department of Haemato-Oncology and Bone Marrow Transplantation, Medical University of Lublin, 20-081 Lublin, Poland