1. Department of Hematology, Oncology and Internal Diseases, Medical University, Warsaw, Poland
2. Department of Public Health, Wrocław Medical University, Wrocław, Poland
3. Department of Hematology, Voivodal Specialist Hospital, Kraków, Poland
4. Department of Hematology, Blood Neoplasms and Bone Marrow Transplantation, University Hospital, Wrocław, Poland
5. Department of Hematology, Warmian-Masurian Cancer Center of the Ministry of the Interior and Administration’s Hospital, Olsztyn, Poland
6. Department of Hematology, Institute of Hematology and Blood Transfusion, Warsaw, Poland
7. Department of Hematology and Hematooncology, District Specialist Hospital, Opole, Poland
8. Department of Hematology and Bone Marrow Transplantation, Medical University of Silesia, Katowice, Poland
9. Department of Hematology, Medical University of Łódź, Łódź, Poland
10. Department of Hematology, District Hospital in Toruń, Toruń, Poland
11. Department of Hematology, District Specialist Hospital in Legnica, Legnica, Poland
12. Department of Hematooncology, Specialist Hospital, Brzozów, Poland
13. Department of Hematology, District Specialist Hospital in Biała Podlaska, Biała Podlaska, Poland
14. Department of Bone Marrow Transplantation and Oncohematology, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, Warszawa, Poland