Franchini, A. F., F. Auxilia, P. M. Galimberti, M. A. Piga, S. Castaldi, and A. Porro. “COVID 19 and Spanish Flu Pandemics: All It Changes, Nothing Changes: COVID 19 Epidemic”. Acta Biomedica Atenei Parmensis, vol. 91, no. 2, May 2020, pp. 245-50, doi:10.23750/abm.v91i2.9625.