1. Department of Obstetrics and Gynecology, University of Alabama at Birmingham, Birmingham, Alabama
2. University of Utah, Salt Lake City, Utah
3. Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
4. Birmingham/Atlanta Geriatric Research, Education, and Clinical Center, Department of Veterans Affairs Medical Center, Birmingham, Alabama
5. Johns Hopkins School of Medicine, Baltimore, Maryland
6. Department of Obstetrics and Gynecology, Loyola University, Chicago, Illinois
7. School of Health Sciences, Oakland University, Rochester, Michigan
8. Division of Urogynecology and Reconstructive Pelvic Surgery, University of Pittsburgh, Magee-Womens Hospital, Pittsburgh, Pennsylvania
9. Baylor College of Medicine, Houston, Texas
10. Department of Biostatistics, University of Michigan, Ann Arbor, Michigan
11. National Institutes of Child Health and Human Development, Bethesda, Maryland