1. Departments of Urology and ObGyn, Division of Urogynecology, MedStar/Georgetown University Medical Center, Washington, District of Columbia
2. Department of Population Health Sciences, Duke University Medical Center, Durham, North Carolina
3. Department of Surgery, Division of Urology, Duke University Medical Center, Durham, North Carolina
4. Department of ObGyn, Division of Urogynecology, Johns Hopkins School of Medicine, Baltimore, Maryland