1Department of Microbiology, Immunology and Transplantation, Nephrology and Renal Transplantation Research Group, KU Leuven, Leuven, Belgium

2Department of Nephrology, Aalborg University Hospital, Aalborg, Denmark

3Department of Nephrology and Renal Transplantation, University Hospital Leuven, Leuven, Belgium

4Laboratory of Pathophysiology, University of Antwerp, Wilrijk, Belgium

5Department of Clinical Chemistry, CIRM, CHU de Liège, University of Liège, Liège, Belgium

Correspondence: Prof. Pieter Evenepoel, Department of Nephrology and Kidney Transplantation, University Hospitals Leuven, Herestraat 49, B-3000 Leuven, Belgium. Email: [email protected]