De Matteis S, Cencedda V, Pilia I, Cocco P. COVID-19 incidence in a cohort of public transport workers. Med Lav [Internet]. 2022 Aug. 25 [cited 2024 Jul. 17];113(4):e2022039. Available from: https://mattioli1885journals.com/index.php/lamedicinadellavoro/article/view/13478