Queiroz, G. et al. 2021. Cordon sanitaire, a necessary evil? Evaluation of non-pharmacological interventions against COVID-19 in Ovar, Portugal. Acta Biomedica Atenei Parmensis. 92, S6 (Nov. 2021), e2021459. DOI:https://doi.org/10.23750/abm.v92iS6.12289.