1. Center for Innovations in Quality, Effectiveness, and Safety Michael E DeBakey VA Medical Center Houston Texas USA
2. Michael E DeBakey Department of Surgery at Baylor College of Medicine Houston Texas USA
3. Center for Surgery and Public Health Brigham and Women's Hospital Boston Massachusetts USA
4. Department of Surgery Brigham and Women's Hospital Boston Massachusetts USA
5. Surgical and Perioperative Care Atlanta VA Health Care System Decatur Georgia USA
6. Department of Surgery, Division of Surgical Oncology Emory University School of Medicine Atlanta Georgia USA
7. Department of Surgery Morehouse School of Medicine Atlanta Georgia USA