Cheung LP

Embryos have traditionally been thought to implant at the exact site they are transferred during assisted reproductive technology (ART). The introduction of 2D/3D ultrasound has allowed for mapping of the transfer site using air bubbles as …

OBJECTIVE: To examine the prevalence of hepatitis B virus (HBV) infection, the associated causes of subfertility, and the outcomes of the first IVF and embryo transfer treatment cycles in these infertile couples. DESIGN: A retrospective co…

OBJECTIVE: This investigation assessed the effect of serum estradiol levels on outcomes of in-vitro fertilization and embryo transfer (IVF) cycles. MATERIALS AND METHOD: This was a retrospective cohort study of 1123 IVF cycles comparing im…

PURPOSE: To evaluate the responses of cultured oviduct mucosal cells to exogenous estradiol treatment in regulating the mRNA expression of vascular endothelial growth factor (VEGF) and its receptors. METHODS: The mucosal layer of the ampul…

Assisted reproductive technologies refer to procedures in which the oocyte is handled or manipulated in vitro before replacement, either as an oocyte or an embryo. Because of rapid advances in this area, infertile couples may seek direct re…