This book focuses on uterine endometrial function and receptivity from multiple perspectives. The chapters cover a variety of topics including the role of estrogen and progesterone, animal models, parameters for assessing endometrial receptivity, the mechanism of angiogenesis, epigenetic regulation, and stem/progenitor cells. Despite nearly 35 years of experience with in vitro fertilization, the rate of successful implantations remains low. Abnormal endometrial receptivity has been proposed as one of the factors contributing to reduced reproductive potential in women, but our understanding of...