1. Students’ Scientific Society at the Department of Pediatric Radiology, Medical University of Lublin, 20-093 Lublin, Poland
2. Department of Pediatric Radiology, Medical University of Lublin, 20-093 Lublin, Poland
3. Department of Pediatric Hematology, Oncology and Transplantation, Medical University of Lublin, 20-093 Lublin, Poland