Williams Obstetrics About the Author F. Gary Cunningham, MD, Professor and Chairman, Department of Obstetrics & Gynecology, Jack A. Pritchard Professor of Obstetrics & Gynecology, Beatrice & Miguel Elias Distinguished Chair in Obstetrics & Gynecology, The University of Texas Southwestern Medical Center at Dallas, Chief of Obstetrics & Gynecology, Parkland Memorial Hospital, Dallas, Texas