C. . La Vecchia, E. Negri, G. Alicandro, and V. Scarpino, “Attitudes towards influenza vaccine and a potential COVID-19 vaccine in Italy and differences across occupational groups, September 2020: Attitudes towards influenza vaccine and a potential COVID-19 vaccine in Italy ”, Med Lav, vol. 111, no. 6, pp. 445–448, Nov. 2020, doi: 10.23749/mdl.v111i6.10813.