1. Medical College of Georgia, Augusta University, Augusta, GA, USA;
2. Department of General Surgery, Medical College of Georgia, Augusta University, Augusta, GA, USA;
3. Department of Internal Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA;
4. Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, Augusta, GA, USA;
5. Department of Obstetrics and Gynecology, Section of Maternal Fetal Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA