1. Department of Experimental Hematology Institute of Hematology and Transfusion Medicine Warsaw Poland
2. Department of Soft Tissue/Bone Sarcoma and Melanoma Maria Sklodowska‐Curie National Research Institute of Oncology Warsaw Poland
3. Department of Biostatistics Institute of Mother and Child Warsaw Poland
4. Early Phase Clinical Trial Unit Maria Sklodowska‐Curie National Research Institute of Oncology Warsaw Poland