1.
Castaldi S, Maffeo M, Rivieccio BA, Zignani M, Manzi G, Nicolussi F, et al. Monitoring emergency calls and social networks for COVID-19 surveillance. To learn for the future: The outbreak experience of the Lombardia region in Italy. Acta Biomed [Internet]. 2020 Jul. 20 [cited 2024 Jul. 17];91(9-S):29-33. Available from: https://mattioli1885journals.com/index.php/actabiomedica/article/view/10038