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Triantafyllidou O, Sigalos G, Oikonomou I, Vlahos N.Triantafyllidou O, et al. Among authors: sigalos g.JBRA Assist Reprod. 2018 Nov 1;22(4):381-384. doi: 10.5935/1518-0557.20180056.JBRA Assist Reprod. 2018.PMID: 30141889Free PMC article.