Clinical pregnancy rate following frozen embryo transfer is higher with blastocysts vitrified on day 5 than on day 6

Perinatal outcomes after fresh versus vitrified-warmed blastocyst transfer: retrospective analysis

(2015) Kemal Ozgur et al.   FERTILITY AND STERILITY

Clinical rationale for cryopreservation of entire embryo cohorts in lieu of fresh transfer

(2014) Bruce S. Shapiro et al.   FERTILITY AND STERILITY

Correlation between standard blastocyst morphology, euploidy and implantation: an observational study in two centers involving 956 screened blastocysts

(2014) Antonio Capalbo et al.   HUMAN REPRODUCTION

Comparison of aneuploidy, pregnancy and live birth rates between day 5 and day 6 blastocysts

(2014) Tyl H Taylor et al.   REPRODUCTIVE BIOMEDICINE ONLINE

Growth retardation in human blastocysts increases the incidence of abnormal spindles and decreases implantation potential after vitrification

(2013) S. Hashimoto et al.   HUMAN REPRODUCTION

The effect of timing of embryonic progression on chromosomal abnormality

(2012) Lindsay Kroener et al.   FERTILITY AND STERILITY

Matched-cohort comparison of single-embryo transfers in fresh and frozen-thawed embryo transfer cycles

(2012) Bruce S. Shapiro et al.   FERTILITY AND STERILITY

Day 5 expanded blastocysts transferred on same day have comparable outcome to those left for more extended culture and transferred on day 6

(2012) Eman Elgindy et al.   JOURNAL OF ASSISTED REPRODUCTION AND GENETICS

Evidence of impaired endometrial receptivity after ovarian stimulation for in vitro fertilization: a prospective randomized trial comparing fresh and frozen–thawed embryo transfer in normal responders

(2011) Bruce S. Shapiro et al.   FERTILITY AND STERILITY

The influence of delayed blastocyst formation on the outcome of frozen-thawed blastocyst transfer: a systematic review and meta-analysis

(2010) S. K. Sunkara et al.   HUMAN REPRODUCTION

Blastocyst development rate impacts outcome in cryopreserved blastocyst transfer cycles

(2008) Eric D. Levens et al.   FERTILITY AND STERILITY

Contrasting patterns in in vitro fertilization pregnancy rates among fresh autologous, fresh oocyte donor, and cryopreserved cycles with the use of day 5 or day 6 blastocysts may reflect differences in embryo-endometrium synchrony

(2007) Bruce S. Shapiro et al.   FERTILITY AND STERILITY