1. Faculty of Medicine, University of Novi Sad, 21137 Novi Sad, Serbia
2. Department of Medical Oncology, Oncology Institute of Vojvodina, 21204 Sremska Kamenica, Serbia
3. Laboratory for Radiobiology and Molecular Genetics, Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11100 Belgrade, Serbia
4. Department of Pathology, Oncology Institute of Vojvodina, 21204 Sremska Kamenica, Serbia
5. Institute of Histology and Embryology, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia