Case report: successful pregnancy after vitrification of a human blastocyst that had completely escaped from the zona pellucida on day 6

This case report describes a successful pregnancy after vitrification of a human hatched blastocyst. A 31‐year‐old woman, after failed stimulated and thaw cycles, underwent short‐treatment protocol stimulation, and oocytes were recovered transvaginally with ultrasound guidance. Eight mature oocytes...

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