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A prospective, randomized study: day 3 versus hatching blastocyst stage
Author(s) -
Takafumi Utsunomiya
Publication year - 2004
Publication title -
human reproduction
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.446
H-Index - 226
eISSN - 1460-2350
pISSN - 0268-1161
DOI - 10.1093/humrep/deh288
Subject(s) - blastocyst , blastocyst transfer , pregnancy , pregnancy rate , gynecology , medicine , embryo transfer , hatching , prospective cohort study , embryo , andrology , obstetrics , biology , embryogenesis , surgery , zoology , genetics , microbiology and biotechnology
Recently, advances in human IVF-embryo transfer (ET) have been reported using sequential media and blastocyst stage ET. In our previous report, using a prospective, randomized study, no advantage was found using the blastocyst stage ET compared with day 3 ET. This study was performed in order to evaluate implantation and pregnancy rates of hatching blastocyst stage ET compared with conventional day 3 ET.

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