TY - CHAP M1 - Book, Section TI - Implantation and Placental Development A1 - Cunningham, F. Gary A1 - Leveno, Kenneth J. A1 - Dashe, Jodi S. A1 - Hoffman, Barbara L. A1 - Spong, Catherine Y. A1 - Casey, Brian M. PY - 2022 T2 - Williams Obstetrics, 26e AB - All obstetricians should understand the basic biological steps required for women to achieve pregnancy. Moreover, abnormalities affecting these steps can lead to infertility or pregnancy loss. The biological and molecular changes involved in human zygote implantation and subsequent fetal and placental development are intricate. In the past 50 years, researchers have delineated many of these molecular and physiological events. Yet, much work remains in the continual challenge to improve clinical outcomes. SN - PB - McGraw Hill CY - New York, NY Y2 - 2024/03/28 UR - accessmedicine.mhmedical.com/content.aspx?aid=1190749634 ER -