Revista de Saúde Pública Print version ISSN 0034-8910On-line version ISSN 1518-8787
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SILVA, Antônio Augusto Moura da et al. Population-based seroprevalence of SARS-CoV-2 and the herd immunity threshold in Maranhão. Rev. Saúde Pública [online]. 2020, vol.54.
Epub Dec 14, 2020. ISSN 1518-8787.