1. Colorectal Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
2. Department of Epidemiology & Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
3. Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York
4. Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
5. Department of Quantitative Sciences, Cleveland Clinic, Cleveland, Ohio
6. James P. Wilmot Cancer Center, University of Rochester, Rochester, New York
7. Department of Surgery, University of South Florida, Tampa
8. Department of Surgery, University of Vermont, Burlington
9. Department of Surgery, University of Chicago, Chicago, Illinois
10. Department of Surgery, Oregon Health & Science University, Portland
11. Department of Surgery, Cleveland Clinic, Cleveland, Ohio
12. Department of Surgery, John Muir Health, Walnut Creek, California
13. Department of Surgery, University Hospital, University of Virginia Health System, Charlottesville
14. Department of Surgery, Creighton University Medical Center, Omaha, Nebraska
15. Department of Medicine, University of Washington, Seattle
16. Department of Surgery, Washington University, St Louis, Missouri