1. DeBusk College of Medicine, Lincoln Memorial University , Harrogate, TN 37752, USA
2. Department of Gynecologic Surgery and Obstetrics, Tripler Army Medical Center , Honolulu, HI 96859, USA
3. Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences , Bethesda, MD 20889, USA
4. Department of Gynecologic Surgery and Obstetrics, Brooke Army Medical Center , San Antonio, TX 78234, USA