1 Department of Colon and Rectal Surgery, Mayo Clinic, Rochester, Minnesota, United States; School of General Surgery, Alma Mater Studiorum - University of Bologna, Bologna, Italy.
2 Department of Colon and Rectal Surgery, Mayo Clinic, Rochester, Minnesota, United States; General Surgery Residency Program, University of Milan, Milan, Italy.
3 Department of Colon and Rectal Surgery, Mayo Clinic, Rochester, Minnesota, United States.
4 Division of Colon and Rectal Surgery, Mayo Clinic, Jacksonville, Florida, United States.
5 Department of Colon and Rectal Surgery, Mayo Clinic, Rochester, Minnesota, United States. Electronic address: Larson.David2@mayo.edu.