Division of Female Pelvic Medicine and Reconstructive Surgery, Department of Obstetrics and Gynecology, Southern California Permanente Medical Group, Irvine Medical Center, Irvine (Drs. Buono, Adams-Piper, Guaderrama and Whitcomb and Ms. Gokhale); Division of Female Pelvic Medicine and Reconstructive Surgery, Department of Obstetrics and Gynecology, University of California Irvine Medical Center, Orange (Dr. Buono); Divsion of Female Pelvic Medicine and Reconstructive Surgery, Department of Obstetrics and Gynecology, The Permanente Medical Group, San Jose Medical Center, San Jose (Dr. Adams-Piper); Department of Research and Evaluation, Southern California Permanente Medical Group, Pasadena (Mrs. Li).