Background To discuss the meaning of serum oestradiol monitoring in frozen embryo
transfer cycle using hormone replacement without pretreatment with gonadotropin hormone …

In order to explore the relationship between endometrial thickness on the day of embryo
transfer and pregnancy outcomes in frozen-thawed embryo transfer (FET) cycles, we …

Background The endometrial preparation during frozen embryo transfer (FET) can be
performed by natural cycle (NC), hormone replacement therapy (HRT) cycle and cycle with …

Background A thin endometrium affects embryo implantation. We designed a retrospective
cohort study to analyze the differences of in vitro fertilization-intracytoplasmic sperm injection …

The role of three-dimensional power Doppler ultrasonography of the endometrium in
assisted reproduction is still far from clear. In this retrospective cohort study, transvaginal …

Purpose To investigate the association between endometrial compaction and pregnancy
rates in unstimulated natural cycle frozen embryo transfers. Design A single-center …

Objective Endometrial injury (EI) is a simple procedure that may improve endometrial
receptivity. The purpose of our study was to investigate whether EI improves reproductive …

Importance Endometrial receptivity testing is purported to improve live birth following frozen
embryo transfer by identifying the optimal embryo transfer time for an individual patient; …

Objective To compare the reproductive outcomes of frozen–thawed embryo transfer (FET) in
nature cycle utilizing monitoring ovulation regimen (MOR) and monitoring progesterone (P) …

Objective To assess the incidence of P elevation (PE) in natural cycles and evaluate its
effect on frozen–thawed embryo transfer cycles performed in natural cycles (FET-NC). Study …