1. Division of General Surgery, Section of Colon and Rectal Surgery, Vanderbilt University, Nashville, Tennessee
2. Department of Surgery, Carolinas Medical Center, Charlotte, North Carolina
3. Department of Colorectal Surgery, Cleveland Clinic Foundation, Digestive Disease and Surgery Institute, Cleveland, Ohio
4. Division of Gastrointestinal and General Surgery, Department of Surgery, Oregon Health and Sciences University, Portland, Oregon
5. Department of Surgery, Section of Colon and Rectal Surgery, Stanford University School of Medicine, Stanford, California
6. Division of Colon and Rectal Surgery, Department of Surgery, Rutgers University, New Brunswick, New Jersey
7. Scripps Clinic Medical Group, Department of Surgery, La Jolla, California
8. Department of Surgery Section of Colon and Rectal Surgery, University of Cincinnati, Cincinnati, Ohio