1. Department of Nephrology, University Hospitals Leuven , Leuven , Belgium
2. Department of Nephrology, General Hospital Oost-Limburg , Genk , Belgium
3. Department of Nephrology and Hypertension, University Medical Center Utrecht , Utrecht , The Netherlands
4. Department of Pathology, University Hospitals Leuven , Leuven , Belgium
5. Department of Microbiology , Immunology and Transplantation, Nephrology and Renal Transplantation Research Group, KU Leuven, Leuven , Belgium
6. Department of Nephrology , Radboud University Medical Center, Nijmegen , The Netherlands
7. Department of Nephrology, General Hospital AZ Voorkempen , Antwerp , Belgium
8. Department of Nephrology, General Hospital AZ Monica , Antwerp , Belgium
9. Department of Hematology, University Hospitals Leuven , Leuven , Belgium
10. Department of Hematology, Amsterdam UMC, University of Amsterdam, Cancer Center Amsterdam & LYMMCARE , Amsterdam , The Netherlands
11. Department of Pathology, University Hospitals Gent , Gent , Belgium