1. Department of Surgery, University of Nebraska Medical Center, Omaha, Nebraska
2. Department of Surgery, Carolinas Medical Center, Charlotte, North Carolina
3. Department of Surgery, University of Colorado School of Medicine, Aurora, Colorado
4. Department of Surgery, Boston Medical Center, Boston, Massachusetts
5. Colorectal Surgery Division, Department of Surgery, University of Rochester Medical Center, Rochester, New York
6. Department of Surgery, Division of Colorectal Surgery, University of Southern California, Los Angeles, California
7. Division of Colon and Rectal Surgery, Department of Surgery, University of Michigan, Michigan Medicine, Ann Arbor, Michigan
8. Department of Surgery, Section of Colon and Rectal Surgery, Washington University School of Medicine, St. Louis, Missouri
9. Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
10. Department of Surgery, Rutgers University, New Brunswick, New Jersey
11. Department of Colon and Rectal Surgery, Cleveland Clinic, Cleveland, Ohio
12. Department of Surgery, Division of Colon and Rectal Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio