1. University Clinical Center of Vojvodina, Clinic of Nephrology and Immunology, Novi Sad
2. University of Novi Sad, Faculty of Medicine, Novi Sad + Institut of Cardiovascular Diseases Vojvodine, Sremska Kamenica
3. University of Novi Sad, Faculty of Medicine Novi Sad + Institut of Cardiovascular Diseases Vojvodine, Sremska Kamenica
4. University Clinical Center of Vojvodina, Clinic of Nephrology and Immunology, Novi Sad + University of Novi Sad, Faculty of Medicine, Novi Sad