1. Medical University of Lodz, Department of Hematology, Lodz, Poland
2. Copernicus Memorial Hospital, Lodz, Poland
3. Medical University of Lodz, Copernicus Memorial Hospital, Department of Hematology, 93-510 Lodz, Ul. Ciolkowskiego 2, Poland ; ;
4. Medical University of Lodz, Department of Dermatology, Lodz, Poland