1. Center for Translational Immunology University Medical Center Utrecht Utrecht The Netherlands
2. Renal Transplant Unit, Department of Internal Medicine Amsterdam University Medical Center Amsterdam The Netherlands
3. Laboratory Medicine, Laboratory of Medical Immunology Radboud University Medical Center Nijmegen The Netherlands
4. Department of Nephrology Radboud University Medical Center, Radboud Institute for Health Sciences Nijmegen The Netherlands
5. Central Diagnostic Laboratory (CDL) University Medical Center Utrecht Utrecht The Netherlands
6. Department of Nephrology and Hypertension University Medical Center Utrecht Utrecht The Netherlands
7. Julius Center for Health Sciences and Primary Care University Medical Center Utrecht, Utrecht University Utrecht The Netherlands
8. Department of Nephrology University Medical Center Groningen Groningen The Netherlands
9. Department of Laboratory Medicine University Medical Center Groningen Groningen The Netherlands
10. Department of Transplantation Immunology, Tissue Typing Laboratory Maastricht University Medical Center Maastricht The Netherlands
11. Department of Internal Medicine, Division of Nephrology Maastricht University Medical Center Maastricht The Netherlands
12. Department of Nephrology Amsterdam University Medical Center Amsterdam The Netherlands
13. Department of Immunogenetics Sanquin Diagnostic Services Amsterdam The Netherlands
14. Dutch Organ Transplant Registry (NOTR), Dutch Transplant Foundation (NTS) Leiden The Netherlands
15. Department of Nephrology Leiden University Medical Center Leiden The Netherlands
16. Department of Nephrology Erasmus Medical Center Rotterdam The Netherlands
17. Department of Immunology Leiden University Medical Center Leiden The Netherlands
18. KU Leuven, Department of Microbiology, Immunology and Transplantation KU Leuven University Leuven Belgium
19. Histocompatibility and Immunogenetics Laboratory (HILA) Belgian Red Cross‐Flanders Mechelen Belgium
20. Department of Nephrology and Renal Transplantation University Hospitals Leuven Leuven Belgium