1. Department of Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
2. Department of Clinical Oncology, Maria Sklodowska-Curie National Research Institute of Oncology, Cracow, Poland
3. Department of Hematooncology and Bone Marrow Transplantation, Medical University, Lublin, Poland
4. Department of Hematology and Bone Marrow Transplantation, Poznan University of Medical Sciences, Poznan, Poland
5. Department of Hematology, Medical University of Lodz, Copernicus Memorial Hospital, Lodz, Poland
6. Department of Hematology and Transplantology, Medical University of Gdansk, Gdansk, Poland
7. Department of Hematology and Bone Marrow Transplantation, Medical School of Silesia, Silesian Medical University, Katowice, Poland
8. Department of Hematology, Medical University, Bialystok, Poland
9. Department of Lymphoid Malignancies, Maria Sklodowska-Curie National Research Institute of Oncology, Warszawa, Poland
10. Department of Hematology, Transplantation and Internal Medicine, Medical University, Warsaw, Poland
11. Department of Hematology and Cellular Transplantation, Lower Silesian Oncology Center, Wroclaw, Poland
12. Department of Hematology, The Provincial Polyclinical Hospital, Torun, Poland
13. Department of Pathology, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
14. Diagnostic Hematology Department, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
15. Department of Hematology, Central Clinical Hospital of the Ministry of the Interior and Administration, Warsaw, Poland