Levi M, Cipriani F, Balzi D. All-cause mortality during the influenza season 20192020: comparison with previous influenza seasons in the territory of the local health authority “Central Tuscany”, Italy. Ann Ig [Internet]. 2025 Sep. 4 [cited 2026 Jan. 31];34(2):150-5. Available from: https://www.mattioli1885journals.com/index.php/annali-igiene/article/view/17677