1. Department of Oncology, Transplantation and Advanced Technology in Medicine, University of Pisa, Pisa, Italy.
2. Department of Human Pathology and Oncology, Section of Pathology, University of Siena, Siena, Italy.
3. Department of Haematology, Careggi Hospital, Florence, Italy.
4. Department of Psychiatry, Neurobiology, Pharmacology and Biotechnology, University of Pisa, Pisa, Italy.
5. Department of Morphological-Biomedical Science, Section of Anatomy and Histology, University of Verona, Verona, Italy.