1. Department of Pneumology, Oncology and Allergology, Medical University of Lublin, 20-090 Lublin, Poland
2. Collegium Medicum, University of Warmia and Mazury in Olsztyn, Aleja Warszawska 30, 11-041 Olsztyn, Poland
3. Department of Haematooncology and Bone Marrow Transplantation, Medical University of Lublin, 20-090 Lublin, Poland
4. Department of Radiology and Neuroradiology, Medical University of Lublin, 20-954 Lublin, Poland