[1] Univ Pittsburgh, Sch Med, Dept Obstet Gynecol & Reprod Sci, Div Urogynecol & Pelv Reconstruct Surg, Pittsburgh, PA 15213 USA
[2] Duke Univ, Sch Med, Dept Obstet & Gynecol, Div Urogynecol, Durham, NC 27708 USA
[3] RTI Int, Biostat & Epidemiol Div, Durham, NC USA
[4] Univ Alabama Birmingham, Dept Obstet & Gynecol, Birmingham, AL USA
[5] Cleveland Clin, Obstet Gynecol & Womens Hlth Inst, Cleveland, OH USA
[6] Eunice Kennedy Shriver Natl Inst Child Hlth & Huma, NIH, Bethesda, MD USA
[7] Brown Univ, Dept Obstet & Gynecol, Div Urogynecol & Reconstruct Pelv Surg, Alpert Med Sch, Providence, RI USA
[8] Univ New Mexico, Dept Obstet & Gynecol, Div Urogynecol, Albuquerque, NM USA
[9] Univ Penn, Perelman Sch Med, Dept Obstet & Gynecol, Philadelphia, PA USA
[10] Univ Calif San Diego Hlth, Dept Urol, La Jolla, CA USA
[11] Magee Womens Res Inst, Pittsburgh, PA USA