1. Department of General Surgery University of Colorado School of Medicine Aurora Colorado USA
2. Department of Surgery Icahn School of Medicine at Mount Sinai Hospital New York New York USA
3. Department of General Surgery Yale University School of Medicine New Haven Connecticut USA
4. Icahn School of Medicine at Mount Sinai Hospital New York New York USA
5. Division of Colon and Rectal Surgery Department of Surgery Icahn School of Medicine at Mount Sinai Hospital New York New York USA