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Effect of vitrification containers on the developmental competence of hatching-stage mouse blastocysts after vitrification and warming (chi-square test)
Values are presented as number (%).
EM, electron microscopy; TPS, thin plastic strip.
aAfter warming, the embryos were cultured in vitro for 3 hours, and the re-expansion rate of the embryos was assessed; bAfter warming, the embryos were cultured in vitro for 24 hours, and the rate of reaching the hatched stage was assessed.
