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The Precise Timing of Embryo Splitting for Monozygotic Dichorionic Diamniotic Twins: When Does Embryo Splitting for Monozygotic Dichorionic Diamniotic Twins Occur? Evidence for Splitting at the Morula/Blastocyst Stage From Studies of In Vitro Fertiliza...
Twin Research and Human Genetics, May 2013, Cambridge University Press
So far, DD twin thought to occur when one two-cells embryo splits and forms two two-cells embryos.
Recently, we revealed a new mechanism which DD twin established divided 2ICM and 2TE from one blastcyst.