1. Division of Urogynecology, Department of Obstetrics and Gynecology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
2. Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
3. Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.