[1]
Poggiali, E. et al. 2020. Negative nasopharyngeal swabs in COVID-19 pneumonia: the experience of an Italian Emergengy Department (Piacenza) during the first month of the Italian epidemic. Acta Biomedica Atenei Parmensis. 91, 3 (Sep. 2020), e2020024. DOI:https://doi.org/10.23750/abm.v91i3.9979.