1. Medical Oncology, S. Maria Della Misericordia Hospital, Perugia, Italy
2. Department of Experimental Medicine, University of Perugia, Perugia, Italy
3. Department of Surgical and Biomedical Science, University of Perugia, Perugia, Italy
4. Department of Experimental Medicine, Section of Anatomic Pathology and Histology, Perugia, Italy