1. Emory University School of Medicine, Atlanta, GA, USA
2. Division of Surgery, Emory University, Grady Health System, Atlanta, GA, USA
3. West Virginia School of Osteopathic Medicine, Lewisburg, WV, USA
4. Rollins School of Public Health, Emory University, Atlanta, GA, USA
5. Division of Anesthesiology, Emory University, Grady Health System, Atlanta, GA, USA