1. Department of Anesthesiology and Perioperative Medicine, Medical College of Georgia at Augusta University, Augusta, GA, USA
2. Outcomes Research Consortium, Cleveland Clinic, Cleveland, OH, USA
3. Vascular Surgery Division, Department of Surgery, Medical College of Georgia at Augusta University, Augusta, GA, USA
4. Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Medical College of Georgia at Augusta University, Augusta, GA, USA