1. Division of Female Pelvic Medicine and Reconstructive Surgery, Feinberg School of Medicine Northwestern University Chicago Illinois USA
2. Department of Obstetrics and Gynecology, Feinberg School of Medicine Northwestern University Chicago Illinois USA
3. Department of Preventive Medicine, Feinberg School of Medicine Northwestern University Chicago Illinois USA
4. Galter Health Sciences Library, Feinberg School of Medicine Northwestern University Chicago Illinois USA