Objective To retrospectively analyze the association of serum estradiol (E2) levels on human
chorionic gonadotropin (hCG) trigger day and live birth rates (LBRs) in women undergoing …

Background Previous investigations have suggested a controversial relationship between
serum estradiol levels on the day of HCG administration and pregnancy rates in women …

Background and Aims: Serum estradiol, LH, and progesterone have been studied for many
years as they were considered to have relation with the pregnancy outcome in IVF …

BACKGROUND: Evaluation of the association between estradiol (E2) levels on the day of
hCG administration and pregnancy achievement in IVF has so far yielded conflicting results …

Objective To determine whether peak serum E2 at time of human chorionic gonadotropin
(HCG) administration during IVF cycle is predictive of pregnancy outcome. Design …

Objective To investigate the hCG-time relationship in early pregnancy. Design Prospective,
randomized study. Setting Pregnant human volunteers in a university-based clinical …

Background There has been several discussion and debates regarding the possible
setremental influence of elevated serum progesterone (SP) on the day of human chorionic …

Objective To evaluate the predictive value of oestradiol levels on the day of human chorionic
gonadotrophin (hCG) administration on intrauterine insemination success rate. Methods The …

Background: Previous studies highlighted the negative effect of premature progesterone
elevation (PE) during IVF cycles on the cycle outcomes. The aim of this study was to assess …

To determine the relationship between serum progesterone on the day of human chorionic
gonadotrophin (HCG) and the pregnancy outcome of IVF–embryo transfer treatment, 251 …