Evaluation of day one embryo quality and IVF outcome--a comparison of two scoring systems.

Reprod Biol Endocrinol · 2009 · PMC2645410 · PMID 19192281

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highly significantno p-value reported

The possibility that early embryo cleavage, a highly significant biological indicator of embryo growth potential, may predict IVF outcome was first proposed by Shoukir et al.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.