1. Department of Surgery; University Hospital Regensburg; University of Regensburg; Regensburg Germany
2. Laboratori Experimental de Nefrologia i Trasplantament (LENIT); Fundació Clínic - IDIBAPS; Barcelona Spain
3. Department of Nephrology and Renal Transplantation; Hospital Clínic; Barcelona Spain
4. MedStar Georgetown Transplant Institute; Georgetown University Hospital; Washington DC