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Fernandez OOA, Pereira JA, Campos FG, Araya CM, Marinho GE, Novo RS, Oliveira TS, Franceschi YT, Martinez CAR.Fernandez OOA, et al. Among authors: martinez car.Arq Bras Cir Dig. 2018 Aug 16;31(3):e1391. doi: 10.1590/0102-672020180001e1391.Arq Bras Cir Dig. 2018.Retraction in: Arq Bras Cir Dig. 2018 Dec 10;31(3):e1396. doi: 10.1590/0102-672020180001e1396PMID: 30133683Free PMC article.Retracted.