Concerns have been raised about the health and development of children conceived by
assisted reproductive technologies (ART) since 1978. Controversially, ART has been linked …

Objectives Blastocyst transfer in assisted reproduction techniques could be advantageous
because the timing of exposure of the embryo to the uterine environment is more analogous …

Perinatal and childhood adverse outcomes associated with assisted reproductive
technology (ART) has been reported, but it remains unknown whether the initial leukocyte …

Objective To investigate the association of endometrium preparation with perinatal
outcomes. Design Retrospective cohort study. Setting University-affiliated fertility center …

Over the past 40 years access and effectiveness of assisted reproductive technologies
(ART) have increased, and to date more than 8 million children have been conceived after …

Objective To investigate the prevalence and potential causes of reverse cleavage (RC) by
human early-cleavage embryos and its associations with embryonic development and …

Improved laboratory standards and better culture media have made extended culture to
blastocyst stage a reality to identify embryos with maximum implantation potential. The …

Objectives To establish the risk factors for monozygotic twin (MZT) and monochorionic twin
(MCT) pregnancies after in vitro fertilization (IVF). Design Systematic review and meta …

ET is a critical step in an assisted reproduction cycle. Over the past decade there has been
an increasing trend to extending culture from cleavage-stage to blastocyst transfer. There …

Objective To compare the perinatal outcomes of singleton pregnancies resulting from
blastocyst‐vs cleavage‐stage embryo transfer and to assess whether they differ between …