1 Department of Hematology and Transplantology, Pomeranian Medical University, 71-252 Szczecin, Poland; Department of General Pathology, Pomeranian Medical University, 70-111 Szczecin. slawomir.milczarek@pum.edu.pl.
2 Department of Hematology and Transplantology, Pomeranian Medical University, 71-252 Szczecin, Poland; Department of General Pathology, Pomeranian Medical University, 70-111 Szczecin.
3 Department of Hematology and Transplantology, Pomeranian Medical University, 71-252 Szczecin.