1. Department of Clinical Immunology; Aarhus University Hospital; Aarhus Denmark
2. Scandiatransplant office; Aarhus Denmark
3. Department of Clinical Immunology, Rudbeck Laboratory; Uppsala University Hospital; Uppsala Sweden
4. Finnish Red Cross Blood Service; Helsinki Finland
5. Department of Immunology and Transfusion Medicine; Oslo University Hospital; Oslo Norway
6. Sahlgrenska University Hospital; Institute of Transplantation; Gothenburg Sweden
7. Department of Nephrology; University Hospital of Copenhagen, Rigshospitalet; Copenhagen Denmark
8. Department of Transplantation Surgery; Karolinska University Hospital; Stockholm Sweden
9. Department of Transplantation Medicine; Oslo University Hospital, Rikshospitalet; Oslo Norway