Mortality in patients admitted to hospital by COVID-19 in Espírito Santo, Brazil, 2020. SciELO Preprints, 2020. DOI: 10.1590/SciELOPreprints.1155. Disponível em: https://preprints.scielo.org/index.php/scielo/preprint/view/1155. Acesso em: 8 nov. 2026.