Roberto Fabiani1, Giulia Naldini2, Manuela Chiavarini3. 1. From the Department of Chemistry, Biology, and Biotechnology, University of Perugia, Perugia, Italy. 2. School of Specialization in Hygiene and Preventive Medicine, University of Perugia, Perugia, Italy. 3. Department of Experimental Medicine, Section of Public Heath, University of Perugia, Perugia, Italy.