1. Pathology Unit, Department of Woman and Child’s Health and Public Health Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
2. Anatomic Pathology Unit, Department of Molecular Medicine, University of Pavia and Fondazione IRCCS San Matteo Hospital, 27100 Pavia, Italy
3. Pathology Unit, Cannizzaro Hospital, 95126 Catania, Italy
4. Department of Surgical Pathology, Ospedale S. Chiara, 38122 Trento, Italy
5. Pathology Institute, Catholic University of Sacred Heart, 00168 Rome, Italy