ABSTRACT
Embryo implantation is one of the main limiting factors to achieving a higher success rate in in-vitro fertilization (IVF). Successful implantation depends on many parameters, particularly the maturity of oocytes, the morphological quality of embryos, and (of most recent interest to researchers) uterine receptivity. Rogers et al1
performed a mathematical analysis and estimated the relative contribution of uterine receptivity to conception as being 31-64%. This agrees with the earlier estimation by Walters et al2 in 1985 that the relative contribution of the embryo quality and uterine receptivity to successful IVF pregnancy is 45-55%, respectively.
