1. Center of Pediatric Oncology and Hematology, Vilnius University Hospital Santaros Klinikos, 08406 Vilnius, Lithuania
2. Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, 03101 Vilnius, Lithuania
3. Center of Pediatrics, Vilnius University Hospital Santaros Klinikos, 08406 Vilnius, Lithuania
4. Center of Hematology, Oncology and Transfusiology, Vilnius University Hospital Santaros Klinikos, 08406 Vilnius, Lithuania
5. Center of Informatics and Development, Vilnius University Hospital Santaros Klinikos, 08406 Vilnius, Lithuania
6. Faculty of Fundamental Sciencies, Vilnius Gediminas Technical University, 10223 Vilnius, Lithuania
7. Health Research Laboratory, Mykolas Romeris University, 08303 Vilnius, Lithuania