Book excerpt: Assess your comprehension and retention of Williams Obstetrics, Twenty-Fifth Edition with the only study guide keyed to that acclaimed textHere’s why this is the ultimate obstetrics study guide:•More than 2,000 evidence-based, multiple-choice questions carefully selected to highlight key points from each chapter of Williams Obstetrics, Twenty-Fifth Edition•The answer key guides you to the pages in Williams Obstetrics, Twenty-Fifth Edition, that contain the explanations and further discussion --- the perfect way to strengthen your weak areas•More than 400 color images are included as question material•Organization follows the chronology of pregnancy, from Maternal and Fetal Anatomy and Physiology to Labor and Delivery, with additional sections on the Fetus and Newborn, Puerperium, Obstetric Complications, and Medical and Surgical Complications•Clinical case questions give your knowledge practical, real-world application