1 Department of Surgical, Medical, Dental and Morphological Sciences with interest in Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Via del Pozzo 71, 41124 Modena, Italy.
2 Department for Life Quality Studies, Alma Mater Studiorum University of Bologna, Via Irnerio 48, 40126 Bologna, Italy.
3 Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy.
4 Department of Pathology, Drexel University College of Medicine, 15th Street MS 435, Philadelphia, PA 19102, USA.