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Christofoletti M, Duca GFD, Gerage AM, Malta DC.Christofoletti M, et al. Among authors: duca gfd.Epidemiol Serv Saude. 2020 Mar 23;29(1):e2018487. doi: 10.5123/S1679-49742020000100006. eCollection 2020.Epidemiol Serv Saude. 2020.PMID: 32215533Free article.English, Portuguese.