Andreoletti, M. et al. 2021. OHCA survey in Lombardy: comparison between years 2014 and 2019 (pre COVID-19). Acta Biomedica Atenei Parmensis. 92, 5 (Nov. 2021), e2021486. DOI:https://doi.org/10.23750/abm.v92i5.11804.