1 1 Unit of Public Health. Department of Biomedical, Biotechnological and Translational Sciences. University of Parma, Parma, Italy, anna.odone@mail.harvard.edu.
2 1 Unit of Public Health. Department of Biomedical, Biotechnological and Translational Sciences. University of Parma, Parma, Italy, 2 School of Medicine, Universitá Vita-Salute San Raffaele, Milan, Italy.