Obstetrics: An Evidence-Based ApproachAbout This Hardback Obstetrics is a field of medicine that is concerned with pregnancy, child delivery and the postpartum period. The fields of obstetrics and gynecology are combined to provide a holistic approach to women's reproductive health and childbirth. The development of ultrasonography, amniocentesis and other methods for diagnosing birth defects, have facilitated the defective fetuses and unwanted pregnancies. Obstetric ultrasonography