1. Kidney and Kidney-Pancreas Transplant Unit (Department of Nephrology); Parma University Hospital; Parma Italy
2. Immunogenetic Unit; Parma University Hospital Parma; Parma Italy
3. Section of Nephrology and Renal Transplant, Department of Specialistic, Diagnostic and Experimental Medicine; University of Bologna; Bologna Italy
4. Nephrology and Dialysis Unit; Hospital of Ravenna; Ravenna Italy
5. Organ Procurement Organization CRT-Emilia Romagna; Bologna Italy
6. Institute of Anatomopathology; University of Bologna; Bologna Italy
7. Nephrology Dialysis and Renal Transplantation Unit; University Hospital of Modena; Modena Italy
8. Renal Division, Department of Medicine; Icahn School of Medicine at Mount Sinai; New York NY