1. Department of Biomedical, Surgical, Dental Science, University of Milan, 20161 Milan, Italy
2. Independent Researcher, 41121 Reggio Emilia, Italy
3. Independent Researcher, 28001 Madrid, Spain
4. College of Medicine and Dentistry, Birmingham B4 6BN, UK
5. Clinical and Experimental Medicine Department, University of Foggia, 65121 Pescara, Italy