Research for the assessment and improvement of endometrial receptivity in infertile women

In assisted reproductive technology (ART), there are three critical factors which are high-quality embryos, good endometrial receptivity (ER) and the synchrony between the blastocyst and the endometrium largely affecting the successful implantation of embryos. A large number of studies indicate that the main cause of implantation failure is the defect of endometrial receptivity, and the embryos ac…