1. Nephrology and Renal Transplant Department Hospital Clínic Barcelona Spain
2. Laboratori Experimental de Nefrologia I Trasplantament (LENIT) Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS) Barcelona Spain
3. Red de Investigación Renal (REDINREN) Instituto de Salud Carlos III Madrid Spain
4. Pathology Department Hospital Clínic Barcelona Spain
5. Medical Statistics Core Facility Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)Hospital Clinic Barcelona Spain
6. Biostatistics Unit Faculty of Medicine Universitat Autònoma Barcelona Spain