1. Department of Gynecology and Obstetrics, Emory University School of Medicine , Atlanta, Georgia , USA
2. Department of Internal Medicine, University of Pennsylvania School of Medicine , Philadelphia, Pennsylvania , USA
3. University of Pennsylvania School of Medicine , Philadelphia, Pennsylvania , USA
4. Department of Gynecology and Obstetrics, Baylor College of Medicine , Houston, Texas , USA
5. Baylor College of Medicine , Houston, Texas , USA
6. Department of Gynecology and Obstetrics, University of Miami School of Medicine , Miami, Florida , USA
7. University of Miami School of Medicine , Miami, Florida , USA
8. Department of Obstetrics and Gynecology, Boston University School of Medicine , Boston, Massachusetts , USA
9. Department of Internal Medicine, Emory University School of Medicine , Atlanta, Georgia , USA