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Article

Embryo morphology or cleavage stage: how to select the best embryos for transfer after in-vitro fertilization

1 Jul 1997

Abstract excerpt

This retrospective study of 1001 in-vitro fertilization (IVF) cycles included a consecutive series of single transfers (n = 341), dual transfers (n = 410) and triple transfers (n = 250) where all the transferred embryos in each cycle were of identical quality score and identical cleavage stage. In our 2 day culture system, transfer of 4-cell embryos resulted in a significantly higher implantation rate and...

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PMID: 9262293
DOI: 10.1093/humrep/12.7.1545

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