1. Clinic of Paediatric Oncology and Haematology, Faculty of Medicine, University of Rzeszow, Rzeszow, Poland;
2. Department of Paediatric Bone Marrow Transplantation, Oncology and Hematology, Wroclaw Medical University, Wroclaw, Poland;
3. Institute of Informatics, University of Warsaw, Warsaw, Poland;
4. Center for Innovation and Transfer of Natural Sciences and Engineering Knowledge, University of Rzeszow, Rzeszow, Poland;
5. Clinic of Paediatric Endocrinology, Faculty of Medicine, University of Rzeszow, Rzeszow, Poland