A retrospective cohort study was performed to examine whether, in artificial endometrial
preparation for frozen embryo transfer (FET) cycles, progesterone (P) levels the day prior to …

Purpose The purpose of this study is to investigate whether progesterone (P4) levels on the
day of frozen-thawed embryo transfer (FET) to a hormonally prepared endometrium …

Background Previous observational studies have highlighted the negative effects of serum
hormone levels at the minimum threshold during frozen embryo transfer (FET) cycles …

Abstract STUDY QUESTION Are progesterone (P) levels on the day before natural cycle
frozen embryo transfer (NC-FET) associated with live birth rate (LBR)? SUMMARY ANSWER …

Research question Is serum progesterone measurement on the day of embryo transfer
associated with outcome of frozen–thawed embryo transfer (FET) in cycles using hormonal …

Background Endometrial preparation with hormone replacement therapy (HRT) is the
preferred regimen for clinicians due to the opportunity to schedule the day of embryo transfer …

Background Progesterone (P4) is essential for support of the endometrium and implantation
of an embryo in the normal menstrual cycle. In programed frozen embryo transfer cycles …

Objective To investigate the association between luteal serum progesterone levels and
frozen embryo transfer (FET) outcomes. Design Systematic review and meta-analysis …

STUDY QUESTION Is there a serum progesterone (P) threshold on the day of embryo
transfer (ET) in artificial endometrium preparation cycles below which the chances of …

Objective To assess the effect of an elevated serum P level on the day of hCG administration
in an IVF cycle on resulting embryos by evaluating their performance at subsequent frozen …