Hacker & Moore's essentials of obstetrics & gynecology / [edited by] Neville F. Hacker, MD, Professor of Gynaecologic Oncology, Conjoint, University of New South Wales, Director, Gynaecological Cancer Centre, Royal Hospital for Women, Sydney, Australia, Joseph C. Gambone, DO, MPH, Executive Editor, Professor Emeritus of Obstetrics and Gynecology, David Geffen School of Medicine at UCLA, Attending Physician, Ronald Reagan UCLA Medical Center, Clinical Professor of Obstetrics and Gynecology, Western University of Health Sciences, College of Osteopathic Medicine of the Pacific Private Infertility and Reproductive Endocrinology Practice, Durango, Colorado, Calvin J. Hobel, MD, Miriam Jacobs Chair in Maternal-Fetal Medicine, Cedars-Sinai Medical Center, Professor of Obstetrics and Gynecology, Professor of Pediatrics, David Geffen School of Medicine at UCLA, Los Angeles, California.