1. Department of Obstetrics and Gynecology, Washington University School of Medicine in St Louis, St Louis, Missouri
2. Department of Obstetrics and Gynecology, Atrium Health Carolinas Medical Center, Charlotte, North Carolina
3. Bernard Becker Medical Library, Washington University School of Medicine in St Louis, St Louis, Missouri
4. Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine in St Louis, St Louis, Missouri
5. Department of Anesthesiology, Washington University School of Medicine in St Louis, St Louis, Missouri
6. Department of Women’s Health, Dell Medical School, University of Texas at Austin
7. Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis