Fully Revised: The twentieth edition has been thoroughly revised and updated by a new team of teachers, integrating clinical material with the latest scientific developments that underpin patient care. New Structure: Each chapter is highly structured with learning objectives, definitions, etiology, clinical features, investigations, treatments, case histories, key point summaries, and additional reading. Highly Illustrated: Text is supported and enhanced throughout by high-quality color line diagrams and photographs. Clear and accessible:  Numerous features supplement the narrative text and provide useful queues for revision. Illustrative Case Histories: Engage the reader with realistic scenarios that bring the obstetric practice to life.