1. Institute of Immunology, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
2. National Transplantation Organisation, Bratislava, Slovakia
3. Urological Clinic and Center for Kidney Transplantation, University Hospital Bratislava and Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
4. Cancer Research Institute, Biomedical Research Center, Slovak Academy of Sciences, Bratislava, Slovakia