1. Department of Pathology and Diagnostics and Public Health, Section of Pathology, University Hospital of Verona, 37136 Verona, Italy
2. Second Opinion, National Transplant Center, 00161 Rome, Italy
3. Pathology Unit, Department of Specialized, Experimental and Diagnostic Medicine, IRCCS, Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
4. Institute of Histopathology and Molecular Diagnosis, Careggi University Hospital, 50134 Florence, Italy
5. Surgical Pathology and Cytopathology Unit, Department of Medicine, University and Hospital Trust of Padua, 35128 Padua, Italy