1. Surgical and Perioperative Care, Atlanta VA Healthcare System, Decatur, GA 30033, USA
2. Division of Vascular Surgery, Department of Surgery, Morehouse School of Medicine, Atlanta, GA 30310, USA
3. Division of Vascular Surgery and Endovascular Therapy, Department of Surgery, Emory University School of Medicine, Atlanta, GA 30322, USA
4. Department of Surgery, Morehouse School of Medicine, Atlanta, GA 30310, USA
5. Information Services, Morehouse School of Medicine, Atlanta, GA 30310, USA
6. Division of Surgical Oncology, Department of Surgery, Emory University School of Medicine, Atlanta, GA 30322, USA