1. Department of Obstetrics and Gynecology, Division of Women's Pelvic Medicine and Reconstructive Surgery University of Alabama at Birmingham
2. Birmingham/Atlanta Geriatric Research, Education and Clinical Center (GRECC), Department of Veterans Affairs Medical Center, Birmingham, AL; Division of Gerontology and Geriatric Medicine, University of Alabama at Birmingham
3. Department of Physical Therapy, Duquesne University
4. Department of Obstetrics and Gynecology, University of Iowa
5. Department of Obstetrics and Gynecology, Loyola University Medical Center, Maywood, IL
6. Department of Obstetrics and Gynecology, Johns Hopkins School of Medicine, Baltimore, MD
7. Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX
8. Department of Obstetrics and Gynecology, University of North Carolina at Chapel Hill
9. Division of Gynecology Specialties, University of Pittsburgh
10. Department of Urology, University of Michigan
11. Contraception and Reproductive Health Branch, Center for Population Research, National Institute of Child Health and Human Development, National Institutes of Health