1 Istanbul School of Medicine, Department of Nephrology, Istanbul, Turkey.
2 Swisstransplant, Bern, Switzerland; Co-Chair of the Declaration of Istanbul Custodian Group.
3 Transplant Division, CLINTEC, Karolinska Institutet, Stockholm, Sweden.
4 Regional Centre of Organ Transplantation, University of Bari, Policlinico, Bari, Italy.
5 European Kidney Health Alliance, Brussels, Belgium; Department of Internal Medicine and Pediatrics, Nephrology Section, Ghent University Hospital, Ghent, Belgium.