Purpose Gonadotrophin releasing hormone agonist (GnRH-a) is widely used for pituitary
down-regulation and recruiting more follicles in assisted reproduction. However, no …

Objective To compare the pregnancy outcome after fresh embryo transfer between GnRH
antagonist and GnRH agonist regimens in patients with thin endometrium. Methods This …

Background Luteinizing hormone (LH) and progesterone (PROG) on human chorionic
gonadotropin (hCG) trigger day are significantly correlated with assisted reproductive …

The well-prepared endometrium with appropriate thickness plays a critical role in successful
embryo implantation. The thin endometrium is the main factor of frozen-embryo transfer …

BACKGROUND The positive effects of growth hormone (GH) on IVF are often attributed to
improvements in oocyte and embryo quality. While emerging evidence emphasizes GH …

Background The goal of this study was to assess the association between endometrial
thickness on the chorionic gonadotropin (hCG) day and in vitro fertilization and embryo …

Purpose Endometriosis may influence different aspects of reproductive physiology including
folliculogenesis, ovulation, embryo quality, and fertilization. Recent data demonstrate that …

Objective To investigate the effect of the long‐acting gonadotropin‐releasing hormone
agonist (GnRHa) long protocol on in vitro fertilization (IVF) outcomes of patients with …

Background Objective: The objective of this study was to examine the use of gonadotrophin-
releasing hormone agonist (GnRH-a) for luteal phase in a group of patients with thin …

Background To investigate the effectiveness of the GnRH-a ultra-long protocol, GnRH-a long
protocol, and GnRH-a short protocol used in in vitro fertilization-embryo transfer (IVF-ET) in …