Sousa EL de, Gaído SB, Sousa RA de, Cardoso O de O, Matos Neto EM de, Menezes Júnior JMP de, Oliveira BFA de, Aguiar BGA. Profile of hospital admissions and in-hospital mortality due to severe acute respiratory syndrome caused by COVID-19 in Piauí, Brazil: descriptive study, 2020-2021 [Internet]. SciELO Preprints. 2022 [cited 2023 Sep. 22]. Available from: https://preprints.scielo.org/index.php/scielo/preprint/view/3436