1. Department of Hematology, Transplantation and Internal Medicine Medical University of Warsaw Warsaw Poland
2. Faculty of Mathematics and Information Science Warsaw University of Technology Warsaw Poland
3. Department of Hematology and Transplantology Medical University of Gdansk Gdansk Poland
4. Department of Hematology and Bone Marrow Transplantation Medical University of Silesia Katowice Poland
5. Department of Hematology Institute of Hematology and Transfusion Medicine Warsaw Poland
6. Department of Hematology Medical University of Lodz Lodz Poland
7. Department of Hematology Ludwik Rydygier Hospital Cracow Poland
8. Department of Hematology Medical University of Bialystok Bialystok Poland
9. Department of Hematology Wroclaw Medical University Wroclaw Poland
10. Maria Sklodowska‐Curie Institute‐Cancer Center, Gliwice Branch Gliwice Poland