MOBILE, Rafael Zancan et al. SARS-CoV-2 in saliva, viremia and seroprevalence for COVID-19 surveillance at a single hematopoietic stem cell transplantation center: a prospective cohort study. Revista do Instituto de Medicina Tropical de São Paulo, São Paulo, Brasil, v. 64, p. e39, 2022. DOI: 10.1590/S1678-9946202264039 . Disponível em: https://www.revistas.usp.br/rimtsp/article/view/198672.. Acesso em: 7 may. 2024.