1 Department of Nephrology, Faculty of Medicine, University of Medicine, Tirana, Albania. [email protected].
2 Department of Internal Medicine, University Hospital of Trauma, Tirana, Albania.
3 Department of Nephrology, Faculty of Medicine, University of Medicine, Tirana, Albania.
4 Department of Nephrology, University Sts. Cyril and Methodius, 1000, Skopje, North Macedonia.
5 Department II of Internal Medicine and Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.