1. Department of Medicine, Division of Nephrology, Faculty of Medicine; University of Debrecen; Hungary
2. FMC Extracorporeal Life Support Center - Fresenius Medical Care Hungary
3. Hatvan; Fresenius Medical Care Hungary
4. Cegléd Hemodialysis Units; Fresenius Medical Care Hungary
5. Division of Transplant Surgery; Methodist University Hospital Transplant Institute; Memphis TN USA
6. Division of Transplant Surgery, Department of Surgery; University of Tennessee Health Science Center; Memphis TN USA
7. Division of Nephrology, Department of Medicine; University of Tennessee Health Science Center; Memphis TN USA
8. Department of Transplantation and Surgery; Semmelweis University; Budapest Hungary
9. Department of Medicine, Division of Nephrology; University of Mississippi Medical Center; Jackson MS USA
10. Department of Medicine, Division of Nephrology; Thomas Jefferson University; Philadelphia PA USA