1. Department of Nephrology and Renal Transplantation; Hospital Clínic de Barcelona; Barcelona Spain
2. Laboratori Experimental de Nefrologia i Trasplantament (LENIT); Fundació Clínic - IDIBAPS; Barcelona Spain
3. Department of Pathology; Hospital Clínic de Barcelona; Barcelona Spain
4. Department of Nephrology; Hospital Universitario Puerta del Mar; Cadiz Spain
5. Department of Nephrology; Hospital Clinico San Carlos; Madrid Spain
6. Department of Nephrology; Clínica Universitaria de Navarra; Pamplona Spain
7. Department of Pathology; Clínica Universitaria de Navarra; Pamplona Spain
8. Renal Transplant Unit; Hospital Universitari de Bellvitge; Barcelona Spain
9. Department of Pathology; Hospital Universitari de Bellvitge; Barcelona Spain