1. Visceral Surgery DepartmentGeneva University Hospital Geneva Switzerland
2. Division of Colorectal Surgery, Department of SurgeryGeorge Washington University Hospital Washington DC
3. Oklahoma Surgical Hospital Tulsa Oklahoma
4. Visceral Surgery DepartmentGeneva University Hospital Geneva Switzerland
5. Division of Colorectal Surgery, Department of SurgeryNew York Presbyterian Hospital‐Columbia University Medical Center New York New York
6. Surgical Oncology DivisionWright State University ‐ Boonshoft School of Medicine Centerville Ohio
7. Wright State University ‐ Boonshoft School of MedicineKettering Cancer Care Kettering Ohio