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Epidemiologia e Serviços de Saúde
Print version ISSN 1679-4974On-line version ISSN 2237-9622

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SALES, Carolina Maia Martins; SILVA, Adriana Ilha da  and  MACIEL, Ethel Leonor Noia. COVID-19 health surveillance in Brazil: investigation of contacts by primary health care as a community protection strategy. Epidemiol. Serv. Saúde [online]. 2020, vol.29, n.4.  Epub July 29, 2020. ISSN 2237-9622.