1. Pathology Section, Department of Medical Biotechnology, University of Siena, Siena, Italy
2. Institute of Pathology, University Hospital of Tübingen, Tübingen, Germany
3. Department of Clinical and Experimental Medicine, University of Florence, Florence, Italy
4. Department of Diagnostic Imaging, Careggi University Hospital, Florence, Italy
5. Pathological Anatomy Section, Careggi University Hospital, Florence, Italy