Universal Screening of SARS-CoV-2 of Oncology Healthcare Workers — a Brazilian experience. SciELO Preprints, 2020. DOI: 10.1590/SciELOPreprints.293. Disponível em: https://preprints.scielo.org/index.php/scielo/preprint/view/293. Acesso em: 17 maio. 2026.