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Ferreira I, Braga AC, Pina-Vaz I.Ferreira I, et al. Among authors: pina vaz i.Eur Endod J. 2019 Jul 10;4(2):75-79. doi: 10.14744/eej.2019.52724. eCollection 2019.Eur Endod J. 2019.PMID: 32161891Free PMC article.