1. Department of Obstetrics and Gynecology, Loyola University Stritch School of Medicine, Maywood, Illinois, USA
2. Department of Obstetrics and Gynecology, Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio, USA
3. Department of Obstetrics and Gynecology, Boston University School of Medicine, Boston, Massachusetts, USA
4. Department of Obstetrics and Gynecology, Virginia Commonwealth University School of Medicine, Inova Campus, Church Falls, Virginia, USA
5. Department of Obstetrics and Gynecology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
6. Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School Boston, Massachusetts, USA
7. Touro College of Osteopathic Medicine, Harlem Campus, Touro College and University System, New York, New York, USA
8. Obstetrics and Gynecology, Women and Infants' Hospital, Providence, Rhode Island, USA
9. Obstetrics and Gynecology, University of Texas Health Sciences Center, San Antonio, Texas, USA
10. Department of Obstetrics, Gynecology, and Reproductive Sciences, Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA
11. Obstetrics and Gynecology, Jefferson Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania, USA
12. Department of Obstetrics, Gynecology, and Newborn Care, University of Ottawa, Ottawa, Ontario, Canada