مؤلف: Bradley J. Champagne

Scott R. Steele Colon & Rectal Surgery                   Madigan Army Medical Center, Fort Lewis, WA, USA; Department of Surgery University of Washington, Seattle, WA, USA   Justin A. Maykel Division of Colorectal Surgery UMass Memorial Medical Center Worcester, MA USA; Department of Surgery University of Massachusetts Medical School Worcester, MA USA   Bradley J. Champagne   Division of Colon & Rectal Surgery Department of Surgery Case Western Reserve University School of Medicine University Hospitals Cleveland, OH USA   Guy R. Orangio                  Division of Colon and Rectal Surgery Department of Surgery              Louisiana State University Health Science Center LSU School of Medicine New Orleans, LA USA